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Class 400/253 - Including electronic control or code-bar control


Subclass of Class 400 - Typewriting machines
Definition: Subject matter wherein the operation of a case-shift* mechanism
No. of patents: 6
Last issue date: 01/11/2005


NumberTitleIssue Date
6841320Method of fabricating anisotropic crystal film on a receptor plate via transfer from the donor plate, the donor plate and the method of its fabrication
The invention pertains to the field of fabrication of devices of various purposes, which use anisotropic films: polarizers, retarders, etc., as well as technology of obtaining coatings with anisotropy of electric conductivity, magnetic properties, thermal conduction...
01/11/2005
5521709Continuous barcode marking system
A method and apparatus is provided for producing single width barcodes in a continuous, serpentine pattern. This pattern provides continuity of operation for laser marking instruments and thereby results in the formation of more uniform and higher quality...
05/28/1996
4407596Case shift and lock input mechanism including a shift control switch
A case shift and lock input mechanism comprising a pair of independently depressable shift keylevers and a depressable shift lock keylever are assembled in a keyboard for actuating a single shift control switch used to condition a printer for printing upp...
10/04/1983
4311400Shift sensitive dual velocity mechanism for a printer
A single print element of a typewriter has the characters thereon impact a record sheet at one of two velocities depending on the area of coverage of the character. Each character on the print element is selected for printing by movement of one of a plura...
01/19/1982
4121048Multiple shift electronic keyboard
A full-roll electronic keyboard having upper and lower case capabilities is disclosed. The keyboard includes a shift key which when depressed will generate first and second coded signals with the first signal utilized to indicate the start of a shift oper...
10/17/1978
4037705Descender printing system for dot matrix printer
A descender printing system for a dot matrix printer, comprising a detector for detecting code words representative of descender characters (lower case letters, punctuation, fractions, etc.) prior to printing, and shift means for actuating the line feed m...
07/26/1977
 
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