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发明名称
ELECTRICALLY OPERATED FLUID FLOW CONTROL DEVICES
摘要
申请公布号
US3457939(A)
申请公布日期
1969.07.29
申请号
USD3457939
申请日期
1966.06.21
申请人
JOSEPH LUCAS IND. LTD.
发明人
FRANK GEORGE FREEMAN
分类号
F15B5/00;(IPC1-7):F15B5/00
主分类号
F15B5/00
代理机构
代理人
主权项
地址
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