Tension device for film reel,申请号US19360078882-传众专利搜索

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发明名称	Tension device for film reel
摘要
申请公布号	US2082328(A)	申请公布日期	1937.06.01
申请号	US19360078882	申请日期	1936.05.09
申请人	PARAMOUNT PRODUCTIONS, INC.	发明人	ENSIGN HARRIS N.;HANSON HARRY A.
分类号	G03B1/40	主分类号	G03B1/40
代理机构		代理人
主权项
地址

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