Kent V. Sibley

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Keller, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for molding a protective helmet
- Patent number 5,298,208
- Issue date Mar 29, 1994
- Athletic Helmet, Inc.
- Kent V. Sibley
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL