G03B

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Description

APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D)

Subclasses

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Subclass Title
1/00 Film-strip handling of general interest for cameras, projectors or printers
1/02 Film-strip handling of general interest for cameras, projectors or printers Moving film strip by pull on end thereof
1/04 Film-strip handling of general interest for cameras, projectors or printers Moving film strip by pull on end thereof Pull exerted by take-up spool
1/06 Film-strip handling of general interest for cameras, projectors or printers Moving film strip by pull on end thereof Pull exerted by take-up spool rotated by lever-operated ratchet and pawl
1/08 Film-strip handling of general interest for cameras, projectors or printers Moving film strip by pull on end thereof Pull exerted by take-up spool rotated by band, chain, rack, or other linear reciprocating operation

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