Sound absorbing or attenuant arrangement for reverberant rooms,申请号US19400367214-传众专利搜索

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发明名称	Sound absorbing or attenuant arrangement for reverberant rooms
摘要
申请公布号	US2335728(A)	申请公布日期	1943.11.30
申请号	US19400367214	申请日期	1940.11.26
申请人	HEINRICH BENECKE	发明人	BENECKE HEINRICH
分类号	E04B1/82;E04B1/99	主分类号	E04B1/82
代理机构		代理人
主权项
地址

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