Title: Attachment for converting a standard typewriter into a correcting typewriter

Abstract: An attachment for a ordinary electric typewriter to convert it into a self-correcting typewriter. The attachment includes a frame which, when bolted to the frame of the typewriter, extends across the typewriter from one side to the other along a path just rearward of the keyboard and at a level higher than the keylevers. The frame of the attachment carries two special keys and also carries a rod for operating the backspace keylever when either of said special keys is depressed and a second rod that selects a correcting field of a ribbon, when one of the special keys is depressed, and selects a writing field of a ribbon, when the other of the special keys is depressed.

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Other info:

Inventors: Wolowitz, William H. (Bethesda, MD, US)

Application Number: 537027
Filing Date: 1974-12-27
Publication_date: 1976-12-14
Assignee:
Primary Class(es): 400/697.1 400/216.1
Other Classes:
US Patent Ref:

3149711	Sep, 1964	Wolowitz	197/91.
3154183	Oct, 1964	Wolowitz	197/91.
3204745	Sep, 1965	Wolowitz	197/91.
3204746	Sep, 1965	Wolowitz	197/91.
3595362	Jul, 1971	Wolowitz	197/91.
3729081	Apr, 1973	Ozimek et al.	197/91.
3799316	Mar, 1974	Davidge et al.	197/91.
3882990	May, 1975	Genesio	197/181.
3927747	Dec, 1975	Wolowitz	197/11.
3927748	Dec, 1975	Wolowitz	197/181.
3927749	Dec, 1975	Wolowitz	197/181.

Other Refs:
Primary Examiner: Grieb, William H.
Assistant Examiner:
Attorney: Hall; William D.