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经营范围
发明名称
Airscrew having an automatically variable pitch
摘要
申请公布号
GB452635(A)
申请公布日期
1936.08.26
申请号
GB19360003916
申请日期
1936.02.08
申请人
SOCIETE D'ETUDES POUR L'AVIATION
发明人
分类号
B64C11/34
主分类号
B64C11/34
代理机构
代理人
主权项
地址
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