Translucent acoustical ceiling panels,申请号US19540454458-传众专利搜索

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发明名称	Translucent acoustical ceiling panels
摘要
申请公布号	US2850110(A)	申请公布日期	1958.09.02
申请号	US19540454458	申请日期	1954.09.07
申请人	BENJAMIN ELECTRIC MANUFACTURING COMPANY	发明人	BENJAMIN REUBEN ALLEN
分类号	E04B9/00;E04B9/32	主分类号	E04B9/00
代理机构		代理人
主权项
地址

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