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经营范围
发明名称
Air propeller
摘要
申请公布号
GB511422(A)
申请公布日期
1939.08.18
申请号
GB19370035211
申请日期
1937.12.20
申请人
GUSTAV SCHWARZ;OTTO SCHWARZ
发明人
分类号
B64C11/22
主分类号
B64C11/22
代理机构
代理人
主权项
地址
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