Air actuated control system,申请号US19540464391-传众专利搜索

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发明名称	Air actuated control system
摘要
申请公布号	US2730910(A)	申请公布日期	1956.01.17
申请号	US19540464391	申请日期	1954.10.25
申请人	PHILLIPS PETROLEUM COMPANY	发明人	PROVINCE JOHN H.
分类号	E21B19/00;E21B41/00	主分类号	E21B19/00
代理机构		代理人
主权项
地址

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