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发明名称
Airplane hangar door
摘要
申请公布号
US1830653(A)
申请公布日期
1931.11.03
申请号
US19300483535
申请日期
1930.09.22
申请人
DAVID GREENWALD
发明人
GREENWALD DAVID
分类号
E06B3/01
主分类号
E06B3/01
代理机构
代理人
主权项
地址
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