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发明名称
Magnetic holder
摘要
申请公布号
US2966992(A)
申请公布日期
1961.01.03
申请号
US19570704438
申请日期
1957.12.23
申请人
THE AMERICAN DISPLAY COMPANY
发明人
DUNKELBERGER JACK E.;DUNKELBERGER BYRON C.
分类号
B25H3/04
主分类号
B25H3/04
代理机构
代理人
主权项
地址
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