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发明名称
Friction devices for stenographic typewriter platens
摘要
申请公布号
US2561453(A)
申请公布日期
1951.07.24
申请号
US19470782473
申请日期
1947.10.28
申请人
NEW DICTATYPE COMPANY, INCORPORATED
发明人
DUYKE HARRISON M. VON
分类号
B41J13/036
主分类号
B41J13/036
代理机构
代理人
主权项
地址
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