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发明名称
RAILWAY DRAFT APPLIANCE
摘要
申请公布号
CA319846(A)
申请公布日期
1932.02.16
申请号
CAD319846
申请日期
申请人
THE MCCONWAY AND TORLEY COMPANY
发明人
WILLIAM J. REGAN;ENOCH GEORGE, JR.
分类号
主分类号
代理机构
代理人
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