Title:
Ribbon shift for error-obliterating typewriters
United States Patent 3154183
US Patent References:
/1171961.html
- - 1171961
/1273302.html
- - 1273302
/1277500.html
- - 1277500
Method and means of eradicating typewritten matter
- - 1905118
/1171961.html
- - 1171961
/1273302.html
- - 1273302
/1277500.html
- - 1277500
Method and means of eradicating typewritten matter
- - 1905118
Inventors:
Wolowitz, William H.
Publication Date:
10/27/1964
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Export Citation:
Assignee:
Wolowitz, William H.
Primary Class:
Other Classes:
400/312, 400/216.100, 400/240.100
International Classes:
B41J35/14; B41J35/04
Foreign References:
| GB528589A |