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发明名称
Typewriter and card punch combination
摘要
申请公布号
US2569805(A)
申请公布日期
1951.10.02
申请号
US19470728600
申请日期
1947.02.14
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
DOTY CHARLES R.;KLOTZ HERMAN J.;KORANYE THEODORE D.
分类号
B41J3/50
主分类号
B41J3/50
代理机构
代理人
主权项
地址
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