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发明名称
Device for operating on flat articles
摘要
申请公布号
US1799655(A)
申请公布日期
1931.04.07
申请号
US19300437623
申请日期
1930.03.20
申请人
THE UNION SWITCH & SIGNAL COMPANY
发明人
STROBEL CHARLES K.
分类号
H01L21/16
主分类号
H01L21/16
代理机构
代理人
主权项
地址
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