The photographic processing industry can be defined loosely to include all users of solutions containing oxidizing and reducing chemicals to develop a photographic product. By this definition the photographic industry includes hospitals processing X-Ray film, motion picture laboratories, amateur and professional film processors developing color prints, television stations processing news film, newspapers and graphic arts houses processing lithographic films, Air Force bases processing aerial reconnaissance films (and others) and banks processing microfilm copies of checks. The total number of military and commercial developers of photographic products may exceed 25,000 separate locations in the United States alone.
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