4. Automatic temperature and humidity regulation
  5. Closed fluid heaters
  6. Top burner control

Stephen Bartok

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Adjustable keyboard drawer assembly

Supports: cabinet structure – For key-board writing machine – Portable
Patent

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Computer monitor support arm

Tools and hardware – Fastener – support or mount not elsewhere specified – Support – guide – or spacer
Patent

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Electric discharge machining apparatus

Electric heating – Metal heating – Cutting or disintegrating
Reexamination Certificate

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Energy conserving water heater control system

Automatic temperature and humidity regulation – Closed fluid heaters – Top burner control
Patent

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Expanding helical ratchet switch

Electricity: circuit makers and breakers – Solid contact – Push button operated
Patent

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Profile ID: LFUS-PAI-P-785952

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