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经营范围
发明名称
Valve operating mechanism
摘要
申请公布号
US3416566(A)
申请公布日期
1968.12.17
申请号
US19660592567
申请日期
1966.11.07
申请人
ACF INDUSTRIES, INCORPORATED
发明人
ANDERSON CLIFFORD E.
分类号
E21B34/04;E21B34/06;F16K31/04
主分类号
E21B34/04
代理机构
代理人
主权项
地址
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