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经营范围
发明名称
Perfectionnements aux hélices
摘要
申请公布号
FR942796(A)
申请公布日期
1949.02.17
申请号
FRD942796
申请日期
1945.12.12
申请人
发明人
MILNER HARRY LAWLEY
分类号
B64C11/00
主分类号
B64C11/00
代理机构
代理人
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