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发明名称
Bit or drill holder
摘要
申请公布号
US1784380(A)
申请公布日期
1930.12.09
申请号
US19280293897
申请日期
1928.07.19
申请人
THE STANLEY WORKS
发明人
MURDOCH WALTER B.
分类号
B23B31/12
主分类号
B23B31/12
代理机构
代理人
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