Bleaching or decolorizing of clay or other minerals,申请号US19280257108-传众专利搜索

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发明名称	Bleaching or decolorizing of clay or other minerals
摘要
申请公布号	US1777446(A)	申请公布日期	1930.10.07
申请号	US19280257108	申请日期	1928.02.25
申请人	THE DARTMOOR CHINA CLAY COMPANY, LIMITED	发明人	PARKER THOMAS WEBSTER
分类号	C04B33/10	主分类号	C04B33/10
代理机构		代理人
主权项
地址

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