Means for advancing film,申请号US19610125522-传众专利搜索

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发明名称	Means for advancing film
摘要
申请公布号	US3324778(A)	申请公布日期	1967.06.13
申请号	US19610125522	申请日期	1961.07.20
申请人	EVERETT ERNEST P	发明人	EVERETT ERNEST P.
分类号	G03B17/30;G03B17/52	主分类号	G03B17/30
代理机构		代理人
主权项
地址

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