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发明名称
Motor operated chuck for lathes and other machine tools
摘要
申请公布号
US1971638(A)
申请公布日期
1934.08.28
申请号
US19320608763
申请日期
1932.05.02
申请人
WILHELM BERG
发明人
BERG WILHELM
分类号
B23B31/16;B23B31/165
主分类号
B23B31/16
代理机构
代理人
主权项
地址
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