OIL WELL DRILLING FLUID,申请号CAD377335-传众专利搜索

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发明名称	OIL WELL DRILLING FLUID
摘要
申请公布号	CA377335(A)	申请公布日期	1938.10.25
申请号	CAD377335	申请日期
申请人	ROY CROSS;MATTHEW FORBES CROSS	发明人	MATTHEW FORBES CROSS;ROY CROSS
分类号		主分类号
代理机构		代理人
主权项
地址

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