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Class Information
Number: 434/223
Name: Education and demonstration > Occupation > Code communication > Visual signalling
Description: Subject matter relating to a system such as semaphore using signals that can be seen.

Patents under this class:

Patent Number Title Of Patent Date Issued
8226477 Automatic simulation of call center scenarios Jul. 24, 2012
5304066 Machine shop management system Apr. 19, 1994
5203704 Method of communication using pointing vector gestures and mnemonic devices to assist in learning point vector gestures Apr. 20, 1993
4202548 International code flag educational game May. 13, 1980
4006305 Blinker practice light Feb. 1, 1977

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