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Douglas C. Kramer
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Bothell, WA, US
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last 30 patents
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Patent number
7,634,544
Issue date
Dec 15, 2009
Microsoft Corporation
Douglas C. Kramer
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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last 30 patents
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Patent Application
LOCATION BASED MESSAGING
Publication number
20090003346
Publication date
Jan 1, 2009
Microsoft Corporation
Douglas C. Kramer
H04 - ELECTRIC COMMUNICATION TECHNIQUE