FILM WIPERS AND PARTS THEREOF, FILM DEVELOPING TANKS AND PARTS THEREOF, THERMOMETERS, TIMERS, FILM RACKS, FILM CLIPS, PHOTOGRAPHIC LIGHTS, TONGS FOR HANDLING PHOTOGRAPHIC FILMS AND PAPERS, TRAYS FOR PROCESSING PHOTOGRAPHIC FILMS AND PAPERS, FILTERS FOR PHOTOGRAPHIC USES AND PADS THEREFOR,EASELS FOR PHOTOGRAPHIC PAPERS AND FILMS,PRINTING FRAMES, FILM AND PAPER SAFETY LIGHTS, CHEMICAL MIXING GRADUATES