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发明名称
Retracting mechanism for printing elements of business machines
摘要
申请公布号
US2619900(A)
申请公布日期
1952.12.02
申请号
US19470766771
申请日期
1947.08.06
申请人
HENDRICUS STUIVENBERG CORNELIS
发明人
STUIVENBERG CORNELIS HENDRICUS
分类号
B41J1/14;B41J9/20
主分类号
B41J1/14
代理机构
代理人
主权项
地址
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