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发明名称
SHEARING GATE VALVE
摘要
申请公布号
JPH03279591(A)
申请公布日期
1991.12.10
申请号
JP19900076547
申请日期
1990.03.26
申请人
CAMERON IRON WORKS INC
发明人
JIERARUDO ESU BEIKAA;ROKU JII HOAN
分类号
E21B29/04;B23D15/04;B23D35/00;F16K3/02;F16K31/122
主分类号
E21B29/04
代理机构
代理人
主权项
地址
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