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发明名称
Wiper holder for perforator-card machines
摘要
申请公布号
US2615627(A)
申请公布日期
1952.10.28
申请号
US19470766769
申请日期
1947.08.06
申请人
HENDRICUS STUIVENBERG CORNELIS
发明人
STUIVENBERG CORNELIS HENDRICUS
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