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经营范围
发明名称
Universal expanding chuck
摘要
申请公布号
US3202431(A)
申请公布日期
1965.08.24
申请号
US19620233346
申请日期
1962.10.26
申请人
THE DUNHAM TOOL COMPANY, INC.
发明人
MOODY HARRY A.
分类号
B23B31/40
主分类号
B23B31/40
代理机构
代理人
主权项
地址
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