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经营范围
发明名称
Hélice propulsive
摘要
申请公布号
FR696545(A)
申请公布日期
1930.12.31
申请号
FRD696545
申请日期
1930.05.28
申请人
发明人
MELCHER FRANZ;SCHNEIDER ERNST
分类号
B63H1/12
主分类号
B63H1/12
代理机构
代理人
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