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Class 341/23 - Variable key legends


Subclass of Class 341 - Coded data generation or conversion
Definition: Subject matter wherein each control element may represent
No. of patents: 446
Last issue date: 05/15/2012


                    12  
NumberTitleIssue Date
4005388Hand-held interactive terminal
An interactive computer terminal which is capable of complete hand-held operation with total freedom of position and location is provided. The terminal incorporates a self-contained full 75-character keyboard, a 20-character alpha numeric readout, and a 1...
01/25/1977
3978328Pocket calculator
A pocket calculator includes a main frame which consists of a keyboard, a display and display drivers mounted on a printed circuit board, a case, and a connector for receiving one of a plurality of arithmetic or processor modules. Each processor module in...
08/31/1976
3976995Precessing display pager
A hand held pager is disclosed in which a transmitted message is displayed in alpha/numeric form by a precessing display which moves the received message across the display in a continuous fashion so that the display need be only large enough to present a...
08/24/1976
3956745Programmable keyboard arrangements
A programmable keyboard of the kind in which a member presents a plurality of discrete areas to a co-operating probe, each of which areas produces a unique signal when addressed by the probe, is provided with a liquid crystal display to identify the curre...
05/11/1976
                    12  
 
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