Process of manufacturing portland cement,申请号US19370164686-传众专利搜索

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发明名称	Process of manufacturing portland cement
摘要
申请公布号	US2130624(A)	申请公布日期	1938.09.20
申请号	US19370164686	申请日期	1937.09.20
申请人	CALIFORNIA PORTLAND CEMENT COMPANY	发明人	KAISER HARRY E.
分类号	C04B7/36	主分类号	C04B7/36
代理机构		代理人
主权项
地址

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