04120039 is referenced by 19 patents and cites 5 patents.

The keyboard for the computer portion of a combined electronic digital watch - computer device is hinged so as to be foldable into either a useable mode or a non-accessable mode, and the individual keys include triggers extending upwardly from the bottom of an elongated depression formed by surrounding side walls, the triggers being positioned eccentrically within the depression.

Title
Electronic digital watch combined with a computer
Application Number
5/806372
Publication Number
4120039
Application Date
June 14, 1977
Publication Date
October 10, 1978
Inventor
Janos Fischer
Feldblumenweg 22, Zurich
CH
Agent
Watson Cole Grindle & Watson
IPC
G04B 19/30
G06F 15/02
G06F 3/02
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