Photographic exposure control device,申请号US19630285472-传众专利搜索

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发明名称	Photographic exposure control device
摘要
申请公布号	US3326105(A)	申请公布日期	1967.06.20
申请号	US19630285472	申请日期	1963.06.04
申请人	POLAROID CORPORATION	发明人	BRANDT EDISON R.;JOHNSON BRUCE K.
分类号	G03B9/14	主分类号	G03B9/14
代理机构		代理人
主权项
地址

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