Mute for wind instruments,申请号US19500163820-传众专利搜索

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发明名称	Mute for wind instruments
摘要
申请公布号	US2690092(A)	申请公布日期	1954.09.28
申请号	US19500163820	申请日期	1950.05.24
申请人	MARTIN WALTER C	发明人	MARTIN WALTER C.
分类号	G10D9/06	主分类号	G10D9/06
代理机构		代理人
主权项
地址

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