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经营范围
发明名称
Improved ornithopter
摘要
申请公布号
GB525256(A)
申请公布日期
1940.08.26
申请号
GB19370035306
申请日期
1939.01.18
申请人
NORMAN ISHERWOOD
发明人
分类号
B64C33/00
主分类号
B64C33/00
代理机构
代理人
主权项
地址
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