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发明名称
Method for assembling parts of gate valves
摘要
申请公布号
US2627651(A)
申请公布日期
1953.02.10
申请号
US19490095254
申请日期
1949.05.25
申请人
EDWARD VALVES, INC.
发明人
MACGREGOR DAVID
分类号
F16K3/12;F16K3/316
主分类号
F16K3/12
代理机构
代理人
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地址
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