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发明名称
Typewriter ribbon mechanism
摘要
申请公布号
US2508780(A)
申请公布日期
1950.05.23
申请号
US19470747608
申请日期
1947.05.13
申请人
NEW DICTATYPE COMPANY, INCORPORATED
发明人
DUYKE HARRISON M. VON
分类号
B41J31/16
主分类号
B41J31/16
代理机构
代理人
主权项
地址
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