4. Heating systems
  5. Automatic control
  6. Water

Lawrence V. Drake

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Electric radiant floor heating system

Static structures (e.g. – buildings) – Processes – Requiring soil work
Patent

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Fluid heating and pumping apparatus

Liquid heaters and vaporizers – Stand boiler
Patent

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Heating method and apparatus

Heating systems – Automatic control – Water
Patent

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Manifold

Heating systems – Heated floor
Patent

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Modular enclosure for utility trailers and pickup trucks

Static structures (e.g. – buildings) – Preassembled subenclosure or substructure section of unit or... – Collapsible for ease of transport
Reexamination Certificate

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Profile ID: LFUS-PAI-P-109468

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