Method and apparatus for subterranean heating,申请号US19630274992-传众专利搜索

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发明名称	Method and apparatus for subterranean heating
摘要
申请公布号	US3181613(A)	申请公布日期	1965.05.04
申请号	US19630274992	申请日期	1963.04.23
申请人	UNION OIL COMPANY OF CALIFORNIA	发明人	KRUEGER ROLAND F.
分类号	E21B36/02	主分类号	E21B36/02
代理机构		代理人
主权项
地址

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