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经营范围
发明名称
Braking mechanism for airships
摘要
申请公布号
US1960762(A)
申请公布日期
1934.05.29
申请号
US19320594338
申请日期
1932.02.19
申请人
UNITED STATES OF AMERICA
发明人
TOWLE ELLINGWOOD H.
分类号
B64C25/44
主分类号
B64C25/44
代理机构
代理人
主权项
地址
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