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发明名称
BUTTERFLY VALVE SEAT
摘要
申请公布号
US3608861(A)
申请公布日期
1971.09.28
申请号
USD3608861
申请日期
1968.05.28
申请人
JAMESBURY CORP.
发明人
DAVID A. HELMAN;MICHAEL E. MILES;JAMES F. DONNELLY
分类号
F16K1/228;(IPC1-7):F16K5/16
主分类号
F16K1/228
代理机构
代理人
主权项
地址
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