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Donald F. Pettengill
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Palo Alto, CA, US
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last 30 patents
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Patent Grant
Circuit protection devices comprising PTC elements
Patent number
4,329,726
Issue date
May 11, 1982
Raychem Corporation
Lee M. Middleman
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Circuit protection devices comprising PTC elements
Patent number
4,238,812
Issue date
Dec 9, 1980
Raychem Corporation
Lee M. Middleman
H01 - BASIC ELECTRIC ELEMENTS