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Jon J. Weagraff
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Titusville, PA, US
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last 30 patents
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Patent Grant
Plastic pellet dryer control system equipped with a temperature pro...
Patent number
5,546,673
Issue date
Aug 20, 1996
The Conair Group, Inc.
Jon J. Weagraff
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Grant
Gate valve for particulate materials
Patent number
5,449,146
Issue date
Sep 12, 1995
The Conair Group, Inc.
Jon J. Weagraff
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL