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发明名称
Work shifter
摘要
申请公布号
US2007334(A)
申请公布日期
1935.07.09
申请号
US19350008148
申请日期
1935.02.25
申请人
ROBERTSON LAMBERTON JOHN
发明人
LAMBERTON JOHN ROBERTSON
分类号
B21B39/26
主分类号
B21B39/26
代理机构
代理人
主权项
地址
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