B
SECTION B — PERFORMING OPERATIONS; TRANSPORTING
 B01 - 
B07
Subsection index
LIQUID/LIQUID, LIQUID/GAS OR GAS/GAS SEPARATION
Method
General operationsB01D
by centrifugal force, using centrifuges or free-vortex apparatusB01D
using magnetic or electrostatic effectB03C
Apparatus
General operationsB01D
by centrifugal force, using centrifuges or free-vortex apparatusB04B, B04C
using magnetic or electrostatic effectB03C
SOLID/LIQUID OR SOLID/GAS SEPARATION
Method
General operationsB01D
by centrifugal forceB01D
using centrifuges or free-vortex apparatusB01D
using magnetic or electrostatic effectB03C
Apparatus
General operationsB01D
by centrifugal forceB01D
using centrifuges or free-vortex apparatusB04B, B04C
using magnetic or electrostatic effectB03C
SOLID/SOLID SEPARATION
Method
Dry methods
material in bulkB07B
Individual sortingB07C
Screening, sifting, pneumatic sortingB07B
using pneumatic tables or jigsB03B
by magnetic or electrostatic effectB03C
by centrifugal forceB07B
using centrifuges or free-vortex apparatusB07B
Wet methods
General operationsB03B
flotation, differential sedimentationB03D
screeningB07B
Combinations Dry methods - wet methodsB03B
Apparatus
Dry methods
material in bulkB07B
Individual sortingB07C
Screening, sifting, pneumatic sortingB07B
using pneumatic tables or jigsB03B
by magnetic or electrostatic effectB03C
by centrifugal forceB07B
using centrifuges or free-vortex apparatusB04B, B04C
Wet methods
General operationsB03B
flotation, differential sedimentationB03D
screeningB07B
Combinations Dry methods - wet methodsB03B
  
PRINTING
 B43
WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
 B43M
BUREAU ACCESSORIES NOT OTHERWISE PROVIDED FOR (stapling devices B25C, B27F; devices for temporarily attaching sheets together B42F; adhesive tape dispensers 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 B44B; seals per se 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 B43M 5/00)
 B43M 3/02
·  equipped with document-folding means (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 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 B43M 5/02; reservoir brushes A46B 11/00; devices for applying liquids or other fluent materials to surfaces in general B05C; liquid receptacles B65D)
 B43M 11/02
·  with rollers
 B43M 11/04
·  with pads (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 B65C 11/00)
P:60 B43M 15/00
Drawing-pins; Thumb-tacks (extractors B25C 11/00)
P:80 B43M 17/00
Other bureau accessories