Headband and earphone mounting,申请号US19440541008-传众专利搜索

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发明名称	Headband and earphone mounting
摘要
申请公布号	US2474386(A)	申请公布日期	1949.06.28
申请号	US19440541008	申请日期	1944.06.19
申请人	JOHN VOLKMANN	发明人	VOLKMANN JOHN
分类号	A42B3/16	主分类号	A42B3/16
代理机构		代理人
主权项
地址

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