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发明名称
Switch throwing means
摘要
申请公布号
US1864117(A)
申请公布日期
1932.06.21
申请号
US19260106458
申请日期
1926.05.03
申请人
BERRY JAMES W;ROBERT MCKNIGHT
发明人
BERRY JAMES W.;MCKNIGHT ROBERT
分类号
G04C23/16
主分类号
G04C23/16
代理机构
代理人
主权项
地址
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