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Household
Class Information
Number:
126/316
Name:
Stoves and furnaces
>
Stovepipe thimbles
> Combined thimble and ventilator
Description:
Devices comprising thimbles designed to ventilate.
Patents under this class:
Patent Number
Title Of Patent
Date Issued
5249567
Modular fireplace assembly
Oct. 5, 1993
5020512
Water heater construction and method of heating water
Jun. 4, 1991
4957098
Wall shield and chimney support
Sep. 18, 1990
4770158
Combustion with leakage resistant exhaust valve
Sep. 13, 1988
4765308
Venting system with natural convection cooling
Aug. 23, 1988
4719901
Flue pipe installation through flammable walls
Jan. 19, 1988
4463748
Insulating apparatus for a flue thimble
Aug. 7, 1984
4399805
Panel insulation apparatus
Aug. 23, 1983
4278068
Posi-draft stabilizer
Jul. 14, 1981
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