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发明名称
DRAFT GEAR LUBRICATING METHOD
摘要
申请公布号
CA338541(A)
申请公布日期
1934.01.09
申请号
CAD338541
申请日期
申请人
THE NATIONAL MALLEABLE AND STEEL CASTINGS COMPANY
发明人
JOHN LEONARD ELER
分类号
主分类号
代理机构
代理人
主权项
地址
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