Fibrous sound producing means and mfthod of producing the same,申请号US19310553296-传众专利搜索

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发明名称	Fibrous sound producing means and mfthod of producing the same
摘要
申请公布号	US1952169(A)	申请公布日期	1934.03.27
申请号	US19310553296	申请日期	1931.07.27
申请人	HAWLEY JESSE B	发明人	HAWLEY JESSE B.
分类号	D21J7/00;H04R7/20;H04R31/00	主分类号	D21J7/00
代理机构		代理人
主权项
地址

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