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发明名称
Valve operator
摘要
申请公布号
US2845814(A)
申请公布日期
1958.08.05
申请号
US19550541394
申请日期
1955.10.19
申请人
EDWARD VALVES, INC.
发明人
MILLEVILLE BERTRAM J.
分类号
F16K31/53
主分类号
F16K31/53
代理机构
代理人
主权项
地址
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