4. Rotary expansible chamber devices
  5. Heat exchange or non-working fluid lubricating or sealing
  6. With pump for non-working fluid

Raymond J. Swidowski

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Condensate removal system

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

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Vane hole cover for rotary compressor

Rotary expansible chamber devices – Heat exchange or non-working fluid lubricating or sealing – With pump for non-working fluid
Patent

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Profile ID: LFUS-PAI-P-1887145

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