Multiple zone control apparatus,申请号US19560594845-传众专利搜索

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发明名称	Multiple zone control apparatus
摘要
申请公布号	US3051242(A)	申请公布日期	1962.08.28
申请号	US19560594845	申请日期	1956.06.29
申请人	RICHFIELD OIL CORPORATION	发明人	CHAMBERLAIN RICHARD O.;JR. CHARLES E. WAKEFIELD,
分类号	E21B34/06;E21B43/14	主分类号	E21B34/06
代理机构		代理人
主权项
地址

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