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William F. Trask
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Nashua, NH, US
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last 30 patents
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Patent Grant
Method and apparatus for slitting and providing selvedge by ultraso...
Patent number
4,662,037
Issue date
May 5, 1987
Actief, N.V.
George A. Provost
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL