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发明名称
Method of making vane tracks
摘要
申请公布号
US2467121(A)
申请公布日期
1949.04.12
申请号
US19460687989
申请日期
1946.08.02
申请人
THE OILGEAR COMPANY
发明人
FERRIS WALTER
分类号
F04C14/20
主分类号
F04C14/20
代理机构
代理人
主权项
地址
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