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经营范围
发明名称
Screw operated vise having a toothed nut and displaceable ratchet for quick opening
摘要
申请公布号
US2485641(A)
申请公布日期
1949.10.25
申请号
US19450590762
申请日期
1945.04.28
申请人
BIRTMAN ELECTRIC COMPANY
发明人
NELSON RAY M.
分类号
B25B1/12;B25B1/22
主分类号
B25B1/12
代理机构
代理人
主权项
地址
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