David Earle Williams

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Levin, NZ

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Patents Grantslast 30 patents

Information Patent Grant
Ventilation system
- Patent number 7,074,124
- Issue date Jul 11, 2006
- Edwards & Williams Greenhouses Ltd.
- David Earle Williams
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
Ventilation system
- Publication number 20040121721
- Publication date Jun 24, 2004
- David Earle Williams
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING