4. Refrigeration
  5. Low pressure cold trap process and apparatus

Johann Hemmerich

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Accelerating grid

Radiant energy – With charged particle beam deflection or focussing – Magnetic lens
Patent

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Cold surface for cryogenic pumps

Refrigeration – Low pressure cold trap process and apparatus
Patent

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Heat absorber structure, particularly a plasma beam absorber

Heat exchange – Movable heating or cooling surface – Rotary drum
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Heat absorber structure, particularly a plasma beam absorber and

Chemistry: electrical and wave energy – Processes and products
Patent

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Helium-cooled cold surface, especially for a cryopump

Refrigeration – Low pressure cold trap process and apparatus
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Profile ID: LFUS-PAI-P-625216

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