Guiding, framing, or constraining film in desired position relative to lens system

Full Title

Film-strip handling of general interest for cameras, projectors or printers > Guiding, framing, or constraining film in desired position relative to lens system

Classification Context

Section:

PHYSICS

Class:

PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY

Subclass:

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

Related Keywords

Child Classifications

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• G03B 1/44 Guides engaging edge of film
• G03B 1/46 Rollers engaging face of film, e.g. barrel, waisted, conical
• G03B 1/48 Gates or pressure devices, e.g. plate
• G03B 1/54 Tensioning or loop-maintaining devices