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David C. Tjonpiangi
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Austin, TX, US
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Patents Grants
last 30 patents
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Patent Grant
Condensed keyboard for electronic devices
Patent number
8,164,570
Issue date
Apr 24, 2012
International Business Machines Corporation
Timothy A. Dietz
G06 - COMPUTING CALCULATING COUNTING
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Patent Grant
Condensed keyboard for electronic devices
Patent number
7,378,991
Issue date
May 27, 2008
International Business Machines Corporation
Timothy A. Dietz
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
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Patent Application
Condensed Keyboard for Electronic Devices
Publication number
20080252603
Publication date
Oct 16, 2008
Timothy A. Dietz
G06 - COMPUTING CALCULATING COUNTING
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Patent Application
CONDENSED KEYBOARD FOR ELECTRONIC DEVICES
Publication number
20070247337
Publication date
Oct 25, 2007
Timothy A. Dietz
G06 - COMPUTING CALCULATING COUNTING