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发明名称
Draft gear
摘要
申请公布号
US2003583(A)
申请公布日期
1935.06.04
申请号
US19320590811
申请日期
1932.02.04
申请人
AMERICAN STEEL FOUNDRIES
发明人
OELKERS ALFRED H.
分类号
B61G7/10
主分类号
B61G7/10
代理机构
代理人
主权项
地址
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