Safety lock for roll film camera doors,申请号US19490101811-传众专利搜索

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发明名称	Safety lock for roll film camera doors
摘要
申请公布号	US2577160(A)	申请公布日期	1951.12.04
申请号	US19490101811	申请日期	1949.06.28
申请人	SIMMON BROTHERS, INC.	发明人	SIMMON ALFRED
分类号	G03B19/04	主分类号	G03B19/04
代理机构		代理人
主权项
地址

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