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发明名称
Improvements in helicopters
摘要
申请公布号
GB571685(A)
申请公布日期
1945.09.04
申请号
GB19450010827
申请日期
1944.05.18
申请人
G. & J. WEIR LIMITED;CYRIL GEORGE PULLIN
发明人
分类号
B64C27/37
主分类号
B64C27/37
代理机构
代理人
主权项
地址
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