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发明名称
Vliegschroef die langs een spiraal met een opwaartse en draaiende beweging de hoogte ingestuwd wordt, om vervolgens al draaiend en zwevend neer te dalen.
摘要
申请公布号
BE591924(A2)
申请公布日期
1960.10.17
申请号
BE19600591924
申请日期
1960.06.16
申请人
SCHENCK, LODEWIJK, MARIA, JULIAAN
发明人
SCHENCK, LODEWIJK, MARIA, JULIAAN
分类号
(IPC1-7):A63H
主分类号
(IPC1-7):A63H
代理机构
代理人
主权项
地址
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