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发明名称
OPERATOR FOR FLAPPER VALVES
摘要
申请公布号
CA891379(A)
申请公布日期
1972.01.25
申请号
CAD891379
申请日期
申请人
COOK MACHINERY CO.
发明人
FRANK E. WILLARD
分类号
F16K31/04;(IPC1-7):F16K31/04
主分类号
F16K31/04
代理机构
代理人
主权项
地址
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