Process of preparing building compositions,申请号US19400340055-传众专利搜索

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发明名称	Process of preparing building compositions
摘要
申请公布号	US2372230(A)	申请公布日期	1945.03.27
申请号	US19400340055	申请日期	1940.06.12
申请人	ALBERT SOMMER	发明人	SOMMER ALBERT
分类号	C04B18/02	主分类号	C04B18/02
代理机构		代理人
主权项
地址

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