4. Refrigeration
  5. Gas controller or director
  6. Cooled gas directed relative to cooled enclosure

Mark J. Perkovich

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Linearly actuated automatic fresh air exchange

Refrigeration – Gas controller or director – Cooled gas directed relative to cooled enclosure
Reexamination Certificate

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Linearly actuated manual fresh air exchange

Refrigeration – With means preventing or handling atmospheric condensate... – Means utilizing heat developed by refrigeration producer
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2856707

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