Ratchet footage indicator for motion picture apparatus,申请号US19370165375-传众专利搜索

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发明名称	Ratchet footage indicator for motion picture apparatus
摘要
申请公布号	US2186926(A)	申请公布日期	1940.01.09
申请号	US19370165375	申请日期	1937.09.23
申请人	EASTMAN KODAK COMPANY	发明人	HUGHEY CARTER J.
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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