Description
Class G03B : 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
Subclass 1/26: Film-strip handling of general interest for cameras, projectors or printers Moving film strip by means which act on the film between the ends thereof Acting means Spiked wheels or pins not penetrating the film