|  | B |
SECTION B — PERFORMING OPERATIONS; TRANSPORTING

|  | B01 - B07 |
Subsection index
LIQUID/LIQUID, LIQUID/GAS OR GAS/GAS SEPARATION |
Method |
General operations | B01D
by centrifugal force, using centrifuges or free-vortex apparatus | B01D
using magnetic or electrostatic effect | B03C
Apparatus |
General operations | B01D
by centrifugal force, using centrifuges or free-vortex apparatus | B04B, B04C
using magnetic or electrostatic effect | B03C
SOLID/LIQUID OR SOLID/GAS SEPARATION |
Method |
General operations | B01D
by centrifugal force | B01D
using centrifuges or free-vortex apparatus | B01D
using magnetic or electrostatic effect | B03C
Apparatus |
General operations | B01D
by centrifugal force | B01D
using centrifuges or free-vortex apparatus | B04B, B04C
using magnetic or electrostatic effect | B03C
SOLID/SOLID SEPARATION |
Method |
Dry methods |
material in bulk | B07B
Individual sorting | B07C
Screening, sifting, pneumatic sorting | B07B
using pneumatic tables or jigs | B03B
by magnetic or electrostatic effect | B03C
by centrifugal force | B07B
using centrifuges or free-vortex apparatus | B07B
Wet methods |
General operations | B03B
flotation, differential sedimentation | B03D
screening | B07B
Combinations Dry methods - wet methods | B03B
Apparatus |
Dry methods |
material in bulk | B07B
Individual sorting | B07C
Screening, sifting, pneumatic sorting | B07B
using pneumatic tables or jigs | B03B
by magnetic or electrostatic effect | B03C
by centrifugal force | B07B
using centrifuges or free-vortex apparatus | B04B, B04C
Wet methods |
General operations | B03B
flotation, differential sedimentation | B03D
screening | B07B
Combinations Dry methods - wet methods | B03B

PRINTING

|  | B43 |
WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES

|  | B43M |
BUREAU ACCESSORIES NOT OTHERWISE PROVIDED FOR (stapling devices Fulltext... Hierarchy... Expanded...B25C, Fulltext... Hierarchy... Expanded...B27F; devices for temporarily attaching sheets together Fulltext... Hierarchy... Expanded...B42F; adhesive tape dispensers Fulltext... Hierarchy... Expanded...B65H 35/07)

|  | B43M |
Subclass index
FIXING SEALS; INSERTING DOCUMENTS INTO, CLOSING, OR OPENING, ENVELOPES | 1/00; 3/00, 5/00, 7/00
PAPER-WEIGHTS; DEVICES FOR APPLYING LIQUIDS; STAMP DISPENSERS; DRAWING-PINS OR THUMB-TACKS; OTHER ACCESSORIES | 9/00; 11/00; 13/00; 15/00; 17/00

P:30 |  | B43M 1/00 |
Fixing seals on documents (embossing dies Fulltext... Hierarchy... Expanded...B44B; seals per se Fulltext... Hierarchy... Expanded...G09F 3/00)

|  | B43M 1/02 |
· | Sealing-wax holders

P:0 |  | B43M 3/00 |
Devices for inserting documents into envelopes (combined devices for inserting documents into, and closing, envelopes Fulltext... Hierarchy... Expanded...B43M 5/00)

|  | B43M 3/02 |
· | equipped with document-folding means (Fulltext... Hierarchy... Expanded...B43M 3/04 takes precedence)

|  | B43M 3/04 |
· | automatic

P:10 |  | B43M 5/00 |
Devices for closing envelopes

|  | B43M 5/02 |
· | Hand devices for both moistening gummed flaps of envelopes and for closing the envelopes

|  | B43M 5/04 |
· | automatic

P:50 |  | B43M 7/00 |
Devices for opening envelopes (cutting tools in general Fulltext... Hierarchy... Expanded...B26)

|  | B43M 7/02 |
· | Devices for both opening envelopes and removing contents

P:70 |  | B43M 9/00 |
Paper-weights

P:20 |  | B43M 11/00 |
Hand or desk devices of the office or personal type for applying liquid, other than ink, by contact to surfaces, e.g. for applying adhesive (combined with envelope-closing devices Fulltext... Hierarchy... Expanded...B43M 5/02; reservoir brushes Fulltext... Hierarchy... Expanded...A46B 11/00; devices for applying liquids or other fluent materials to surfaces in general Fulltext... Hierarchy... Expanded...B05C; liquid receptacles Fulltext... Hierarchy... Expanded...B65D)

|  | B43M 11/02 |
· | with rollers

|  | B43M 11/04 |
· | with pads (Fulltext... Hierarchy... Expanded...B43M 11/06 takes precedence)

|  | B43M 11/06 |
· | Hand-held devices

|  | B43M 11/08 |
· · | of the fountain-pen type

P:40 |  | B43M 13/00 |
Dispensers without mechanisms for single stamps modified for the application of stamps to articles (manually-controlled or manually-operable label or stamp dispensers Fulltext... Hierarchy... Expanded...B65C 11/00)

P:60 |  | B43M 15/00 |
Drawing-pins; Thumb-tacks (extractors Fulltext... Hierarchy... Expanded...B25C 11/00)

P:80 |  | B43M 17/00 |
Other bureau accessories