Method and apparatus for cleaning pipe lines,申请号US19290392471-传众专利搜索

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发明名称	Method and apparatus for cleaning pipe lines
摘要
申请公布号	US1785230(A)	申请公布日期	1930.12.16
申请号	US19290392471	申请日期	1929.09.13
申请人	STANDARD OIL DEVELOPMENT COMPANY	发明人	SHANER GEORGE A.;DAMP RALPH E.;DONOVAN GEORGE G.
分类号	B08B9/04	主分类号	B08B9/04
代理机构		代理人
主权项
地址

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