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Peter E. Pritchard
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New Milford, CT, US
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last 30 patents
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Patent Grant
Stylus suspension
Patent number
4,067,582
Issue date
Jan 10, 1978
Sonic Research, Inc.
Peter E. Pritchard
G11 - INFORMATION STORAGE
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Patent Grant
Stereo phonograph pick-up cartridge
Patent number
4,009,885
Issue date
Mar 1, 1977
Sonic Research Inc.
Peter E. Pritchard
G11 - INFORMATION STORAGE