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发明名称
Improvements in or relating to the manufacture of metallic propeller blades for aircraft
摘要
申请公布号
GB605256(A)
申请公布日期
1948.07.20
申请号
GB19440008695
申请日期
1944.05.08
申请人
UNITED AIRCRAFT CORPORATION
发明人
分类号
B21D53/78
主分类号
B21D53/78
代理机构
代理人
主权项
地址
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