Improvements in or relating to drilling mud for use in earth-boring operations,申请号GB19540024184-传众专利搜索

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发明名称	Improvements in or relating to drilling mud for use in earth-boring operations
摘要
申请公布号	GB754294(A)	申请公布日期	1956.08.08
申请号	GB19540024184	申请日期	1954.08.19
申请人	HORACE VICTOR MARR	发明人
分类号	C09K8/32	主分类号	C09K8/32
代理机构		代理人
主权项
地址

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