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1.发明授权Indicator assembly for convoluted band material in motion picture cameras or the like 失效运动图像摄像机或类似物中的带状物料的指示器组件
公开(公告)号：US3519213A
公开(公告)日：1970-07-07
申请号：US3519213D
申请日：1968-04-18
Applicant: AGFA GEVAERT AG
Inventor： HOFMANN WILFRED , PFEIFER JOSEF
CPC classification number: G03B17/305 , G03B1/54 , G03B21/43
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