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发明名称
Power locking driye chuck
摘要
申请公布号
US2509888(A)
申请公布日期
1950.05.30
申请号
US19470759331
申请日期
1947.07.07
申请人
WICKES BROS.
发明人
SCHULZ RICHARD E.
分类号
主分类号
代理机构
代理人
主权项
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