Film take-up drive,申请号US19330697568-传众专利搜索

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发明名称	Film take-up drive
摘要
申请公布号	US2094095(A)	申请公布日期	1937.09.28
申请号	US19330697568	申请日期	1933.11.11
申请人	RADIO CORPORATION	发明人	COLLINS MILFORD EDWIN
分类号	G03B21/43	主分类号	G03B21/43
代理机构		代理人
主权项
地址

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