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Class 400/20 - Rotatable disc scriber


Subclass of Class 400 - Typewriting machines
Definition: Subject matter wherein the instrumentality is a plate turned
No. of patents: 3
Last issue date: 04/28/1992


NumberTitleIssue Date
5108203Printing apparatus including error correction and memory means, for printing vertical and horizontal form lines
A printing apparatus includes a print wheel having a vertical lien character, a minus symbol character, and an underline symbol character. A first control moves a carriage on which the print wheel is mounted at one of two pitches and a second control adva...
04/28/1992
4363557Marking device for shorthand machine
A marking device for a shorthand machine selectively marks the margins of the paper tape output of the shorthand machine to denote a portion of the shorthand notes for ready reference. The activating keys for the device are located in close proximity with...
12/14/1982
4270866Platen positioning attachment for typewriters for typewriting musical notation
An attachment for installation upon a typewriter for applying musical notations to a sheet material and comprising a frame pivotally mounted on the typewriter body, the frame including a bridging member at one end of the frame adjacent the platen of the t...
06/02/1981
 
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