Apparatus for determining photographic exposures,申请号US19360061735-传众专利搜索

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发明名称	Apparatus for determining photographic exposures
摘要
申请公布号	US2147902(A)	申请公布日期	1939.02.21
申请号	US19360061735	申请日期	1936.01.31
申请人	JAY JAKOSKY JOHN	发明人	JAKOSKY JOHN JAY
分类号	G01J1/22	主分类号	G01J1/22
代理机构		代理人
主权项
地址

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