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发明名称
PROPELLOR FOR WATERCRAFT AND AIRCRAFT
摘要
申请公布号
IE17119(L)
申请公布日期
1946.09.12
申请号
IE19460000107
申请日期
1946.02.25
申请人
DONALD VIVIAN HOTCHKISS
发明人
分类号
(IPC1-7):B63H/00;B64D/00
主分类号
(IPC1-7):B63H/00
代理机构
代理人
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