Key matrix for a telephone handset

Details Key matrix for a telephone handset Key matrix for a telephone handset

1997-11-07

2000-04-25

Asch, Jeffrey

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Element or attachment

1403

Patent

active

D04235150

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www.nokia.com, Nokia 5190 telephone from the internet, Aug. 1998.

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