Retarding setting rate of portland cement,申请号US19400340770-传众专利搜索

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发明名称	Retarding setting rate of portland cement
摘要
申请公布号	US2290956(A)	申请公布日期	1942.07.28
申请号	US19400340770	申请日期	1940.06.15
申请人	LONE STAR CEMENT CORPORATION	发明人	GRUENWALD ERNST;DURBIN HARVEY R.;TILLEY WILLIAM H.
分类号	C04B24/14	主分类号	C04B24/14
代理机构		代理人
主权项
地址

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