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发明名称
Retracting mechanism for boring tools
摘要
申请公布号
US2279250(A)
申请公布日期
1942.04.07
申请号
US19390270386
申请日期
1939.04.27
申请人
THE HEALD MACHINE COMPANY
发明人
SCOTT GHERALD D.;WHITTEMORE GEORGE A.;GLENDON FRANK A.
分类号
B23B29/034
主分类号
B23B29/034
代理机构
代理人
主权项
地址
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