Lew V. Hewitt

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Corpus Christi, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Revolving door assembly with foldable door wings
- Patent number 4,980,992
- Issue date Jan 1, 1991
- Overhead Door Corporation
- William S. Liles
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Acoustic obstruction detector and method
- Patent number 4,706,227
- Issue date Nov 10, 1987
- Overhead Door Corporation of Texas
- Dale R. DuVall
- B66 - HOISTING LIFTING HAULING