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Christopher A. Alviar
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Portland, OR, US
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last 30 patents
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Patent Grant
Electronic data display panel for use with an overhead projector
Patent number
D324210
Issue date
Feb 25, 1992
In Focus Systems, Inc.
Sohrab Vossoughi
D14 - Recording, communication, or information retrieval equipment
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Patent Grant
Electronic data display panel for use with an overhead projector
Patent number
D317446
Issue date
Jun 11, 1991
In Focus Systems, Inc.
Sohrab Vossoughi
D14 - Recording, communication, or information retrieval equipment