4. Electric resistance heating devices
  5. Heating devices
  6. Immersion heater details

John Jeffery

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Hot water tank construction, electrically operated heating eleme

Electric resistance heating devices – Heating devices – Immersion heater details
Patent

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Method and apparatus for injection of NO.sub.x reducing agent

Liquid heaters and vaporizers – Miscellaneous
Patent

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Temperature adjusting system in exposure apparatus

Electric heating – Heating devices – With power supply and voltage or current regulation or...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-68891

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