Typewriting machines – Means auxiliary to typewriting function – Means for correcting typing errors
Patent
1981-06-16
1983-05-24
Burr, Edgar S.
Typewriting machines
Means auxiliary to typewriting function
Means for correcting typing errors
B41J 2936
Patent
active
043847986
ABSTRACT:
A cardholder of a single element moving carriage typewriter may be modified to accept and accurately position with respect to the print point of the typewriter a correction media holder so that a correction operation may be performed correcting erroneously typed characters. The correction media holder is configured to mate in a precise condition with the modified cardholder and to support a supply and takeup spool of correction media on the holder as well as to cause the deflection of the correction media as it traverses across the region of the print point to present the active or operative face of the correction media to a printed page.
REFERENCES:
patent: 3834512 (1974-09-01), Haugen
IBM Technical Disclosure Bulletin, vol. 21, No. 12, May 1979 "Cardholder-Ribbon Guide Combination for Printers", pp. 4744-4746.
Burr Edgar S.
International Business Machines - Corporation
Letson Laurence R.
Pearson Charles
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