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发明名称
Draft mechanism
摘要
申请公布号
US2013759(A)
申请公布日期
1935.09.10
申请号
US19310574005
申请日期
1931.11.09
申请人
THE BUCKEYE STEEL CASTINGS COMPANY
发明人
MCPHERSON JOHN S.
分类号
B61G9/24
主分类号
B61G9/24
代理机构
代理人
主权项
地址
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