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Class Information
Number: 434/231
Name: Education and demonstration > Occupation > Keyboard operation (e.g., typing, key punching, etc.) > Practice keyboard having individually depressible keys
Description: Subject matter wherein the training is performed on a dummy keyboard having individual keys each of which can be depressed without affecting another key.

Sub-classes under this class:

Class Number Class Name Patents
434/232 With means to display character upon depression of key 7

Patents under this class:

Patent Number Title Of Patent Date Issued
7507893 Method for teaching music Mar. 24, 2009
6709273 Electronic keyboard instructor Mar. 23, 2004
6382854 Computer keyboard enhancement kit May. 7, 2002
5289389 Device for measuring response speed and accuracy Feb. 22, 1994
4867684 Organizer-keyboard Sep. 19, 1989
4044475 Training machine for keyboards Aug. 30, 1977

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