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经营范围
发明名称
Perfectionnements aux hélicoptères
摘要
申请公布号
FR1058623(A)
申请公布日期
1954.03.17
申请号
FRD1058623
申请日期
1952.06.23
申请人
发明人
CZARNECKI STEFAN
分类号
B64C27/18
主分类号
B64C27/18
代理机构
代理人
主权项
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