Building block and method of making it,申请号US19390281845-传众专利搜索

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发明名称	Building block and method of making it
摘要
申请公布号	US2347556(A)	申请公布日期	1944.04.25
申请号	US19390281845	申请日期	1939.06.29
申请人	PITTSBURGH-CORNING CORPORATION	发明人	GRIFFITH LAWRENCE O.
分类号	C03B11/14;E04C1/42	主分类号	C03B11/14
代理机构		代理人
主权项
地址

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