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发明名称
VALVE MECHANISM
摘要
申请公布号
CA425692(A)
申请公布日期
1945.02.20
申请号
CAD425692
申请日期
申请人
GEORGE AUTOMATIC TRAIN CONTROL COMPANY
发明人
FREDERICK E. MCLAUGHLIN
分类号
主分类号
代理机构
代理人
主权项
地址
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