Desk telephone lifting device,申请号US19450628558-传众专利搜索

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发明名称	Desk telephone lifting device
摘要
申请公布号	US2430276(A)	申请公布日期	1947.11.04
申请号	US19450628558	申请日期	1945.11.14
申请人	AUTOMATIC ELECTRIC LABORATORIES, INC.	发明人	CANDY CHARLES M.
分类号	H04M1/02	主分类号	H04M1/02
代理机构		代理人
主权项
地址

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