Blow-out preventer,申请号US19360071632-传众专利搜索

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发明名称	Blow-out preventer
摘要
申请公布号	US2132037(A)	申请公布日期	1938.10.04
申请号	US19360071632	申请日期	1936.03.30
申请人	MACCLATCHIE MANUFACTURING COMPANY OF CALIFORNIA	发明人	MACCLATCHIE JOHN W.
分类号	E21B33/06	主分类号	E21B33/06
代理机构		代理人
主权项
地址

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