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Marshall R. Brookhart
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Newbury Park, CA, US
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Patents Grants
last 30 patents
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Patent Grant
Automatic track following feature for helical video recorder
Patent number
4,426,665
Issue date
Jan 17, 1984
Minnesota Mining and Manufacturing Company
Robert S. Bradford
G11 - INFORMATION STORAGE
Information
Patent Grant
Head positioning transducer for helical scan video reproducer
Patent number
4,337,492
Issue date
Jun 29, 1982
Minnesota Mining and Manufacturing Company
Marshall R. Brookhart
G11 - INFORMATION STORAGE
Information
Patent Grant
Single track digital recorder and circuit for use therein having er...
Patent number
4,254,500
Issue date
Mar 3, 1981
Minnesota Mining and Manufacturing Company
Marshall R. Brookhart
G11 - INFORMATION STORAGE
Information
Patent Grant
Single track audio-digital recorder and circuit for use therein hav...
Patent number
4,145,683
Issue date
Mar 20, 1979
Minnesota Mining and Manufacturing Company
Marshall R. Brookhart
G11 - INFORMATION STORAGE