发明名称 |
Error correcting typewriter with electronically controlled backspacing to facilitate perfect overstrike of errors |
摘要 |
An error correcting typewriter wherein a backspace correction key is operative to read an incorrect character from memory, to in turn reversely move a stepper motor controlled carriage twice the width of a character in error and then forwardly the width of the character in error and then to effect overstrike printing of the character in error.
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申请公布号 |
US4286889(A) |
申请公布日期 |
1981.09.01 |
申请号 |
US19790054942 |
申请日期 |
1979.07.05 |
申请人 |
TRIUMPH WERKE NURNBERG A.G. |
发明人 |
EBERT, HERMANN;BACHMANN, GUNTER |
分类号 |
B41J29/36;(IPC1-7):B41J29/16 |
主分类号 |
B41J29/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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