controlador preventivo de erupção do tipo de êmbolo de vedação bidirecional, sistema de comunicação de fluido do controlador e método para operar o mesmo.,申请号BR20020011712-传众专利搜索

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发明名称	controlador preventivo de erupção do tipo de êmbolo de vedação bidirecional, sistema de comunicação de fluido do controlador e método para operar o mesmo.
摘要
申请公布号	BR0211712(B1)	申请公布日期	2012.01.10
申请号	BR20020011712	申请日期	2002.07.25
申请人		发明人	MELVYN F. WHITBY;PAUL L. TASSON;BOLIE C. WILLIAMS
分类号	E21B33/06;E21B33/064	主分类号	E21B33/06
代理机构		代理人
主权项
地址

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