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Sperry; Charles R.
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Springfield, VT, US
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last 30 patents
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Patent Grant
Apparatus, method and article for applying a melted adhesive
Patent number
4,804,110
Issue date
Feb 14, 1989
Sperry; Charles R.
Charles R. Sperry
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL