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发明名称
Valve operator mechanism
摘要
申请公布号
US2808849(A)
申请公布日期
1957.10.08
申请号
US19510250398
申请日期
1951.10.09
申请人
BLAW-KNOX COMPANY
发明人
POTTMEYER EDWARD W.
分类号
C21B9/12;F16K31/46
主分类号
C21B9/12
代理机构
代理人
主权项
地址
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