| IPC 7 English version |
 A43 - A43B 13/42 |
| A43B01500-A43B02330 |
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| SECTION A – HUMAN NECESSITIES |
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| A 43 | FOOTWEAR |
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| A 43 B | CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR |
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15/ | 00 | Welts for footwear |
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17/ | 00 | Socks (hosiery A41B 11/00; special medical insertions for shoes A61F 5/14) |
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17/ | 02 | . | Wedge-like or resilient socks or sock parts |
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17/ | 03 | . | . | pneumatic |
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17/ | 04 | . | with metal insertions or coverings |
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17/ | 06 | . | with metal springs |
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17/ | 08 | . | Ventilated socks |
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17/ | 10 | . | for sweaty feet; Waterproof socks |
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17/ | 12 | . | Wooden socks |
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17/ | 14 | . | made of sponge, rubber, or plastic materials |
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17/ | 16 | . | with heel or toe caps |
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17/ | 18 | . | Arrangements for attaching socks to the footwear |
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19/ | 00 | Shoe-shaped inserts; Inserts covering the instep |
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21/ | 00 | Heels; Top-pieces |
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21/ | 02 | . | characterised by the material |
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21/ | 03 | . | . | wood |
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21/ | 04 | . | . | leather |
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21/ | 06 | . | . | rubber |
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21/ | 08 | . | . | . | combined hard and soft rubber |
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21/ | 10 | . | . | . | Expansible top-pieces |
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21/ | 12 | . | . | . | Tread surfaces with suction cavities |
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21/ | 14 | . | . | . | Heels or top-pieces made of rubber waste |
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21/ | 16 | . | . | . | with non-rubber insertions in the tread surface |
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21/ | 18 | . | . | combined rubber and leather |
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21/ | 20 | . | . | plastics |
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21/ | 22 | . | Heels or heel attachments specially designed to prevent splashing |
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21/ | 24 | . | characterised by the constructive form |
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21/ | 26 | . | . | Resilient heels |
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21/ | 28 | . | . | . | Pneumatic heels |
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21/ | 30 | . | . | Heels with metal springs |
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21/ | 32 | . | . | Resilient supports for the heel of the foot |
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21/ | 34 | . | . | Hollow metal heels with interchangeable top-pieces |
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21/ | 36 | . | characterised by their attachment; Securing devices for the attaching means (combined with soles A43B 13/28) |
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21/ | 37 | . | . | by hook-shaped or bent attaching means |
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21/ | 38 | . | . | by screws only |
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21/ | 39 | . | . | by rib and groove |
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21/ | 40 | . | . | . | by dovetail |
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21/ | 42 | . | . | Heels with replaceable or adjustable parts |
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21/ | 433 | . | . | . | rotatably mounted |
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21/ | 437 | . | . | . | with axially-adjustable rod-like top-pieces |
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21/ | 44 | . | . | by claw-like means |
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21/ | 45 | . | . | . | with special tensioning means |
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21/ | 46 | . | . | by bolts |
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21/ | 47 | . | . | by resilient means |
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21/ | 48 | . | . | . | by press-buttons |
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21/ | 50 | . | . | by bayonet catches or the like |
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21/ | 51 | . | . | with keyhole-shaped opening and pin |
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21/ | 52 | . | . | Interchangeable heel parts without special attachments |
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21/ | 54 | . | . | by adhesion or the like |
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23/ | 00 | Uppers; Boot legs; Stiffeners; Other single parts of footwear |
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23/ | 02 | . | Uppers; Boot legs |
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23/ | 04 | . | . | Uppers made of one piece; Uppers with inserted gussets |
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23/ | 06 | . | . | Waterproof legs |
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23/ | 07 | . | Linings therefor |
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23/ | 08 | . | Heel stiffeners; Toe stiffeners (footwear with sock-absorbing means A43B 7/32) |
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23/ | 10 | . | . | made of metal |
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23/ | 14 | . | . | made of leather |
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23/ | 16 | . | . | made of impregnated fabrics, plastics or the like |
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23/ | 17 | . | . | . | made of plastics |
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23/ | 20 | . | Nails, pegs, pins, clamps, or tacks, for footwear |
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23/ | 22 | . | Supports for the shank or arch of the uppers (for health or hygienic purposes A43B 7/14) |
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23/ | 24 | . | Ornamental buckles; Other ornaments for shoes without fastening function |
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23/ | 25 | . | . | Arrangement of ribbons on footwear |
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23/ | 26 | . | Tongues for shoes |
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23/ | 28 | . | Devices to put in shoes in order to prevent slipping at the heel or to prevent abrading the stockings |
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23/ | 30 | . | Heel-protectors for car-drivers |
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| A43 - A43B 13/42 |  |
