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经营范围
发明名称
CAR COUPLER
摘要
申请公布号
CA519240(A)
申请公布日期
1955.12.06
申请号
CAD519240
申请日期
申请人
NATIONAL MALLEABLE AND STEEL CASTINGS COMPANY
发明人
WILLIAM J. METZGER
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主分类号
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