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发明名称
PIPELINE VALVE CONTROL SYSTEM
摘要
申请公布号
US3556126(A)
申请公布日期
1971.01.19
申请号
USD3556126
申请日期
1968.11.19
申请人
ASHLAND OIL & REFINING CO.
发明人
LAWRENCE E. OSWALD
分类号
G05D7/06;H04B10/118;(IPC1-7):G05D11/13
主分类号
G05D7/06
代理机构
代理人
主权项
地址
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