(0)B21F:1/1:
IPC6
SECTION B - PERFORMING OPERATIONS; TRANSPORTING
WORKING OR PROCESSING OF WIRE
B21F
2/2
<<
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B21F025/00 - B21F045/26
25
/
00
Making barbed wire
27
/
00
Making wire network, i.e. wire nets
(meshed-ring network
B 21 F 31/00
; in making bands
B 21 F 43/00
; using looms
D 03 D
)
27
/
02
•
without additional connecting elements or material at crossings, e.g. connected by knitting
27
/
04
•
•
Manufacturing on machines with rotating blades or formers
27
/
06
•
•
Manufacturing on twister-gear machines
27
/
08
•
with additional connecting elements or material at crossings
27
/
10
•
•
with soldered or welded crossings
27
/
12
•
Making special types or portions of network by methods or means specially adapted therefor
27
/
14
•
•
Specially bending or deforming free wire ends
27
/
16
•
•
for spring mattresses
27
/
18
•
•
of meshed work for filters or sieves
27
/
20
•
•
of plaster-carrying network
27
/
22
•
•
of network for wire-reinforced glass or the like
29
/
00
Making fencing or like material made partly of wire
(
B 21 F 25/00
,
B 21 F 27/00
take precedence)
[2]
29
/
02
•
comprising bars or the like connected by wires
31
/
00
Making meshed-ring network from wire
33
/
00
Tools or devices specially designed for handling or processing wire fabrics or the like
33
/
02
•
Mounting of wire network on frames
33
/
04
•
Connecting ends of helical springs for mattresses
35
/
00
Making springs from wire
(by coiling wire
B 21 F 3/00
; making resilient rings
B 21 F 37/02
)
35
/
02
•
Bending or deforming ends of coil springs to special shape
35
/
04
•
Making flat springs, e.g. sinus springs
37
/
00
Manufacture of rings from wire
(in chain making
B 21 L
; producing bead-rings or bead-cores for tyres
B 29 D 30/48
)
37
/
02
•
or resilient rings, e.g. key-rings
37
/
04
•
of washers (
B 21 F 37/02
takes precedence)
39
/
00
Making wheel spokes from wire
41
/
00
Making umbrella frames or members from wire
43
/
00
Making bands, e.g. bracelets, or wire
(making chains
B 21 L
; using looms
D 03 D
)
45
/
00
Wire-working in the manufacture of other particular articles
(of pins, needles, nails, hairpins
B 21 G
; of chains
B 21 L
)
45
/
02
•
of clothes hangers
45
/
04
•
of elements, e.g. levers or links, for bottle stoppers
45
/
06
•
of flexible shafts or hollow conduits, e.g. for Bowden mechanisms
45
/
08
•
of loom heddles
45
/
10
•
of cards for fabric-napping machines
45
/
12
•
of fishing hooks
45
/
14
•
of end-pieces for laces or ropes
45
/
16
•
of devices for fastening or securing purposes
45
/
18
•
•
of slide fastener elements
45
/
20
•
•
of spring hooks; of spring safety hooks
45
/
22
•
•
of paper fasteners or clips (staples
B 21 F 45/24
)
45
/
24
•
•
of staples; of belt-fastening elements
45
/
26
•
•
of buttons
45
/
28
•
•
•
of "patent-fastener" or press-button type
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