Motion picture camera with exposure meter,申请号US19390264102-传众专利搜索

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发明名称	Motion picture camera with exposure meter
摘要
申请公布号	US2252573(A)	申请公布日期	1941.08.12
申请号	US19390264102	申请日期	1939.03.25
申请人	FRANK DUMUR	发明人	LEITZ LUDWIG;BECKER HELMUT;BROSCHKE HEINRICH
分类号	G03B7/06	主分类号	G03B7/06
代理机构		代理人
主权项
地址

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