Sound absorbing material,申请号US19340751021-传众专利搜索

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法人/股东/高管

发明名称	Sound absorbing material
摘要
申请公布号	US2076994(A)	申请公布日期	1937.04.13
申请号	US19340751021	申请日期	1934.11.01
申请人	KANENGEISER FRED R	发明人	KANENGEISER FRED R.
分类号	E04B1/84;E04B1/86	主分类号	E04B1/84
代理机构		代理人
主权项
地址

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