Telephone shoulder rest,申请号US19500163338-传众专利搜索

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发明名称	Telephone shoulder rest
摘要
申请公布号	US2647171(A)	申请公布日期	1953.07.28
申请号	US19500163338	申请日期	1950.05.22
申请人	HARMON SYDNEY E	发明人	HARMON SYDNEY E.
分类号	H04M1/05	主分类号	H04M1/05
代理机构		代理人
主权项
地址

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