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经营范围
发明名称
Process of making screw driver bits
摘要
申请公布号
GB719625(A)
申请公布日期
1954.12.08
申请号
GB19510005281
申请日期
1951.03.05
申请人
RESEARCH ENGINEERING & MANUFACTURING, INC.
发明人
BROWN FRANK KINNEY;JR. HARVEY FISK PHIPARD,;JR. GEORGE EDWIN JENNEY,
分类号
B25B15/00;B25B15/02;B25B23/00
主分类号
B25B15/00
代理机构
代理人
主权项
地址
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