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Daniel L. Ingold
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Wardsboro, VT, US
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last 30 patents
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Patent Grant
Edge seal and rerailer for insulating shade
Patent number
4,651,796
Issue date
Mar 24, 1987
Appropriate Technology Corporation
Bruce C. Gardner
E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information
Patent Grant
Edge seal and rerailer for insulating shade
Patent number
4,516,618
Issue date
May 14, 1985
Appropriate Technology Corporation
Bruce C. Gardner
E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information
Patent Grant
Venting system for insulating window shade
Patent number
4,497,436
Issue date
Feb 5, 1985
Appropriate Technology Corporation
Daniel L. Ingold
E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS