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Class 400/311 - Including pawl and escapement wheel


Subclass of Class 400 - Typewriting machines
Definition: Subject matter wherein the carriage* is caused to
No. of patents: 3
Last issue date: 07/16/1985


NumberTitleIssue Date
4529327Typewriter correction device for correcting in the forward or reverse directions
An erasing ribbon is guided by the same vibrator as the typing ribbon behind the lower part of the typing ribbon. An erasing key acts on the back-spacing mechanism of the typewriter and on an element which suppresses the carriage escapement during a corre...
07/16/1985
4285605Escapement mechanism and backspace mechanism for a moving paper carriage typewriter having dual pitch capability
A mechanism which will function to allow the escapement of the carriage of a typewriter in one of two predetermined escapement pitches and be capable of backspace operation from a single backspace input for both pitches regardless of which escapement pitc...
08/25/1981
4273455Justifying text writing composing machine
A mechanism which provides bi-directional movement of the carrier of an electric typewriter incorporating proportional spacing. A ratchet arrangement is operable in both directions to provide the desired proportional spacing increments, with rotation of a...
06/16/1981
 
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