发明名称 Film identification method
摘要 A film identification method comprises the steps of providing an undeveloped photographic film with first exposure identification indicia positioned adjacent to the exposure zone of the film, and providing the film with second exposure identification indicia, corresponding to the first identification indicia, positioned within the exposure zone of the film. Additionally, a film roll identification indicia may be provided to identify the particular roll of film from which the exposures originated.
申请公布号 US4370409(A) 申请公布日期 1983.01.25
申请号 US19810277038 申请日期 1981.06.24
申请人 BOSTROEM, THEODORE 发明人 BOSTROEM, THEODORE
分类号 G03B27/46;G03C3/00;G03C11/02;(IPC1-7):G03C1/76 主分类号 G03B27/46
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