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发明名称
Improvements in or relating to rotary wing aircraft
摘要
申请公布号
GB504718(A)
申请公布日期
1939.04.26
申请号
GB19370029173
申请日期
1937.10.26
申请人
HAROLD HAY HUTCHISON;JOHN JOSEPH GIBSON
发明人
分类号
B64C27/18
主分类号
B64C27/18
代理机构
代理人
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地址
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