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发明名称
VARIABLE PITCH PROPELLER CONTROL SYSTEM
摘要
申请公布号
CA406424(A)
申请公布日期
1942.07.28
申请号
CAD406424
申请日期
申请人
JOHN HAYES HAMMOND, JR.
发明人
GEORGE A. COLLEY
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主分类号
代理机构
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