Operative-support for telephone sets and the like,申请号US19290397499-传众专利搜索

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发明名称	Operative-support for telephone sets and the like
摘要
申请公布号	US1847649(A)	申请公布日期	1932.03.01
申请号	US19290397499	申请日期	1929.10.05
申请人	PIERREPONT HAZARD THOMAS	发明人	HAZARD THOMAS PIERREPONT
分类号	H04M1/04	主分类号	H04M1/04
代理机构		代理人
主权项
地址

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