4. Stoves and furnaces
  5. Stoves
  6. Heating

James E. Watson

Inventor

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Auxiliary flue for furnaces

Heating – Work chamber having heating means – Combustion products heat work by contact
Patent

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Drawing device with multimedia enhancement

Geometrical instruments – Scriber
Patent

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Drawing screen

Office supplies; artists and teachers materials – Equipment for writing – drawing – or for fine arts – Writing or drawing surface – e.g. – blackboard – drawing board,...
Patent

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Immersion tube heater treater improved immersion tube heater tre

Stoves and furnaces – Liquid heater – Fluid fuel burner for other than top-accessible vessel
Patent

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Optical waveguides and methods for making the same

Semiconductor device manufacturing: process – Making device or circuit emissive of nonelectrical signal – Including integrally formed optical element
Reexamination Certificate

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Profile ID: LFUS-PAI-P-172621

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