Photography,申请号US19370135983-传众专利搜索

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发明名称	Photography
摘要
申请公布号	US2173518(A)	申请公布日期	1939.09.19
申请号	US19370135983	申请日期	1937.04.09
申请人	WARNER BROS. PICTURES, INC.	发明人	JACKMAN FRED W.
分类号	G03B15/12	主分类号	G03B15/12
代理机构		代理人
主权项
地址

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