Automatic rewind film carrier,申请号US19410381975-传众专利搜索

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发明名称	Automatic rewind film carrier
摘要
申请公布号	US2315954(A)	申请公布日期	1943.04.06
申请号	US19410381975	申请日期	1941.03.06
申请人	GERTRUDE ISRAEL	发明人	GRUENHUT ALFRED
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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