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发明名称
Device for counting leaves or sheets in piles or packets
摘要
申请公布号
US2663567(A)
申请公布日期
1953.12.22
申请号
US19510243680
申请日期
1951.08.25
申请人
EDVIN ROSSWALL AXEL
发明人
ROSSWALL AXEL EDVIN
分类号
G06M9/00
主分类号
G06M9/00
代理机构
代理人
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地址
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