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经营范围
发明名称
Countersinking machine
摘要
申请公布号
US1951093(A)
申请公布日期
1934.03.13
申请号
US19320604305
申请日期
1932.04.09
申请人
NATIONAL TUBE COMPANY
发明人
JOHNSTON HARRY M.
分类号
B23B39/22;B23Q5/32;B23Q7/10
主分类号
B23B39/22
代理机构
代理人
主权项
地址
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