Method of manufacturing surface ornamented acoustical tile,申请号US19410406921-传众专利搜索

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发明名称	Method of manufacturing surface ornamented acoustical tile
摘要
申请公布号	US2388880(A)	申请公布日期	1945.11.13
申请号	US19410406921	申请日期	1941.08.14
申请人	UNITED STATES GYPSUM COMPANY	发明人	STITT ROGER H.
分类号	B28B11/04;B28B11/08	主分类号	B28B11/04
代理机构		代理人
主权项
地址

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