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发明名称
Portable electric drill with chuck key retaining structure
摘要
申请公布号
US3348432(A)
申请公布日期
1967.10.24
申请号
US19650498216
申请日期
1965.10.20
申请人
ROCKWELL MANUFACTURING COMPANY
发明人
III JOSEPH D. KIEFFER
分类号
B23B45/00
主分类号
B23B45/00
代理机构
代理人
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