James Woolnough

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Brattleboro, VT, US

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Patents Grantslast 30 patents

Information Patent Grant
Insulating window covering
- Patent number 4,418,739
- Issue date Dec 6, 1983
- Appropriate Technology Corporation
- James Woolnough
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS