Motion picture camera spool,申请号US19440540419-传众专利搜索

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发明名称	Motion picture camera spool
摘要
申请公布号	US2380788(A)	申请公布日期	1945.07.31
申请号	US19440540419	申请日期	1944.06.15
申请人	SAM PRINZIVALLI	发明人	PRINZIVALLI SAM
分类号	G03B21/32	主分类号	G03B21/32
代理机构		代理人
主权项
地址

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