-
-
-
-
-
-
Adjustable keyboard
-
Patent number 5,743,666
-
Issue date Apr 28, 1998
-
DataHand Systems, Inc.
-
Anthony VanZeeland
-
G06 - COMPUTING CALCULATING COUNTING
-
Switch assembly
-
Patent number 5,514,866
-
Issue date May 7, 1996
-
Industrial Innovations, Inc.
-
Dale J. Retter
-
H03 - BASIC ELECTRONIC CIRCUITRY
-
Three-way switch
-
Patent number 5,376,764
-
Issue date Dec 27, 1994
-
Industrial Innovations, Inc.
-
Dale J. Retter
-
H03 - BASIC ELECTRONIC CIRCUITRY
-
-
Alpha-numeric keyboard
-
Patent number 4,913,573
-
Issue date Apr 3, 1990
-
Dale J. Retter
-
G06 - COMPUTING CALCULATING COUNTING