4. Wells
  5. With heating, refrigerating or heat insulating means
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Vacuum method for removing soil contaminants utilizing thermal c

Wells – With heating – refrigerating or heat insulating means – Electrical heater in well
Patent

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Variable frequency temperature limited heaters

Wells – With heating – refrigerating or heat insulating means – Electrical heater in well
Reexamination Certificate

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Well bore apparatus arranged for operating in high-temperature w

Wells – With heating – refrigerating or heat insulating means
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Well head heating system

Wells – With heating – refrigerating or heat insulating means
Patent

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Well hot oil system

Wells – With heating – refrigerating or heat insulating means – With eduction pump or plunger in well
Patent

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Well logging evaporative thermal protection system

Wells – With heating – refrigerating or heat insulating means
Patent

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Wellhead heating apparatus and method

Wells – With heating – refrigerating or heat insulating means – Heater surrounding production tube
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0
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