CHEMCO

PHOTOGRAPHIC, PHOTOENGRAVING AND PHOTOMECHANICAL APPLIANCES, APPARATUS, MACHINES AND SUPPLIES-NAMELY (GROUP A) FOCUSING SCALES, SCALING SLIDE RULES, T-SQUARES, RATIO SCALES, STRIP-FILM AND SENSITIZED STRIPPING PAPER, (GROUP B) STRIP-FILM ROLL CAMERA, OFFSET CAMERAS, DEPTH GAUGES FOR ENGRAVED PLATES, INTEGRATING PHOTOELECTRIC EXPOSURE METERS, PHOTOGRAPHER'S MAGNIFIERS ETCHER'S MAGNIFIERS, SCREEN SEPARATION GAUGES FOR HALFTONE CAMERAS, CONTROLLED TEMPERATURE DARKROOM SINKS, WATERJACKETED DEVELOPING TANKS, ETCHING MACHINES, DISAPPEARING SCREEN MECHANISMS (BEING MECHANISMS FOR USE WITH PHOTOMECHANICAL CAMERAS FOR SLIDING A HALFTONE SCREEN INTO AND OUT OF THE IMAGE AREA OF THE CAMERA), STRIPPING CABINETS, STEEL RULERS, CAMERA SHUTTERS AND LENS MOUNTINGS, AND (GROUP C) ELECTRICAL HEATING, LIGHTING, CONTROLLING AND ACTUATING APPARATUS PARTICULARLY FOR USE IN PHOTOGRAPHY,PHOTOENGRAVING, PHOTOLITHOGRAPHY, PHOTOGRAVURE, HALFTONE REPRODUCTION, AND OTHER PHOTOMECHANICAL PROCESSES-NAMELY, PLATE DRIERS, COLD GRID PRINTERS, WHITE LIGHT VIEWING CABINETS, DARKROOM SAFE LIGHTS, LIGHT CONTROLLED AND INTEGRATING TIMERS ADAPTED TO OPERATE A CAMERA SHUTTER, SHUTTERS-ELECTRICALLY DRIVEN PLATE WHIRLERS, GAS HEATED ELECTRICALLY DRIVEN PLATE WHIRLERS, INFRA-RED BURNING-IN OVENS, FLUORESCENTLY LIGHTED WHITE LIGHT BOX FOR VIEWING TRANSPARENCIES AND NEGATIVES, AND ELECTRICALLY HEATED NEGATIVE DRYING OVENS