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Catalytic gas-fired furnace system and method

Stoves and furnaces – Hot-air furnaces – Compressed air
Patent

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Catalytic metal hydride space heater

Stoves and furnaces – Hot-air furnaces – Compressed air
Patent

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Cell panel for furnace

Stoves and furnaces – Hot-air furnaces – Compressed air
Reexamination Certificate

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Chambered gas fired convection heater

Stoves and furnaces – Hot-air furnaces – Liquid or gaseous fuel
Patent

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Clamshell heat exchanger for a furnace or unit heater

Stoves and furnaces – Hot-air furnaces – Compressed air
Patent

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Cleanout header for multi oil furnaces

Stoves and furnaces – Hot-air furnaces – Horizontal combustion chamber
Patent

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Coaxial dual primary heat exchanger

Stoves and furnaces – Hot-air furnaces – Liquid or gaseous fuel
Patent

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Cold spot baffle for coupling box

Stoves and furnaces – Hot-air furnaces – Compressed air
Patent

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Combination hot air furnace and hot water heater

Stoves and furnaces – Hot-air furnaces – Combined with boiler
Patent

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Combination water heating and space heating apparatus

Stoves and furnaces – Hot-air furnaces – Combined with boiler
Patent

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Combined humidistat and electronic air flow responsive switch

Stoves and furnaces – Hot-air furnaces – Air moisteners
Patent

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Combustion chamber construction

Stoves and furnaces – Hot-air furnaces – Joints
Patent

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Combustion gas heat recovery apparatus

Stoves and furnaces – Hot-air furnaces – Preliminary air heater
Patent

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Combustion heater

Stoves and furnaces – Hot-air furnaces – Preliminary air heater
Patent

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Combustion heater

Stoves and furnaces – Hot-air furnaces – Compressed air
Patent

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Combustion heater

Stoves and furnaces – Hot-air furnaces – Compressed air
Reexamination Certificate

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Combustion heater

Stoves and furnaces – Hot-air furnaces – Feeding air
Patent

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Combustion system for a heater

Stoves and furnaces – Hot-air furnaces – Compressed air
Reexamination Certificate

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Combustion type heater

Stoves and furnaces – Hot-air furnaces – Compressed air
Patent

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Compact forced air heater

Stoves and furnaces – Hot-air furnaces – Compressed air
Patent

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