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经营范围
发明名称
Improvements in or relating to rotor blades
摘要
申请公布号
GB619694(A)
申请公布日期
1949.03.14
申请号
GB19460021269
申请日期
1946.07.16
申请人
UNITED AIRCRAFT CORPORATION
发明人
分类号
B64C27/473
主分类号
B64C27/473
代理机构
代理人
主权项
地址
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