Sound barrier wall or door construction,申请号US19400372310-传众专利搜索

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发明名称	Sound barrier wall or door construction
摘要
申请公布号	US2350513(A)	申请公布日期	1944.06.06
申请号	US19400372310	申请日期	1940.12.30
申请人	BURGESS-MANNING COMPANY	发明人	LEADBETTER RALPH L.
分类号	E04B1/82;E04B1/84;E04B1/86;E06B5/20	主分类号	E04B1/82
代理机构		代理人
主权项
地址

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