Tape control for projectors,申请号US19310554574-传众专利搜索

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发明名称	Tape control for projectors
摘要
申请公布号	US1968818(A)	申请公布日期	1934.08.07
申请号	US19310554574	申请日期	1931.08.01
申请人	THE WESTERN UNION TELEGRAPH COMPANY	发明人	DIRKES ROBERT F.;ROBERTS GEORGE I.
分类号	H04L13/18	主分类号	H04L13/18
代理机构		代理人
主权项
地址

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