Method and materials for cleaning oil wells and equipment,申请号US19450609491-传众专利搜索

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发明名称	Method and materials for cleaning oil wells and equipment
摘要
申请公布号	US2438682(A)	申请公布日期	1948.03.30
申请号	US19450609491	申请日期	1945.08.07
申请人	ROBERTS PEARLIE B	发明人	ROBERTS PEARLIE B.
分类号	C09K8/524	主分类号	C09K8/524
代理机构		代理人
主权项
地址

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