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发明名称
PITCH CONTROL AID
摘要
申请公布号
EP0289341(A3)
申请公布日期
1990.05.09
申请号
EP19880303917
申请日期
1988.04.29
申请人
W.R. GRACE & CO.-CONN. (A CONNECTICUT CORP.)
发明人
BENNISON, JOHN JAMES;CLIFFORD, RICHARD PURDIE
分类号
D21H17/02;D21H17/07;D21H21/02;(IPC1-7):D21H3/02;A01N25/08
主分类号
D21H17/02
代理机构
代理人
主权项
地址
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