Moving picture film reel,申请号US19450598747-传众专利搜索

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发明名称	Moving picture film reel
摘要
申请公布号	US2462261(A)	申请公布日期	1949.02.22
申请号	US19450598747	申请日期	1945.06.11
申请人	GOLDBERG JACOB M	发明人	GOLDBERG JACOB M.
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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