Demountable acoustical ceiling,申请号US19570654414-传众专利搜索

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发明名称	Demountable acoustical ceiling
摘要
申请公布号	US3032833(A)	申请公布日期	1962.05.08
申请号	US19570654414	申请日期	1957.04.22
申请人	DUO-FLEX CORPORATION	发明人	STANLEY JOHN E.
分类号	E04B9/12;E04B9/28	主分类号	E04B9/12
代理机构		代理人
主权项
地址

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