4. Refrigeration
  5. Automatic control
  6. Withdrawing or adding refrigerant from or to normally closed...

Robert L. Cain

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Environmental protection refrigerant disposal and charging syste

Refrigeration – With means for charging closed refrigeration producing system
Patent

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Environmental protection refrigeration disposal and charging sys

Refrigeration – Automatic control – Withdrawing or adding refrigerant from or to normally closed...
Patent

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Selective mode multi-stage vacuum pump

Pumps – Alternate series or parallel operation of plural pumps
Patent

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Vacuum pump

Rotary expansible chamber devices – With mechanical sealing – Seal element between stationary cylinder parts
Patent

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Profile ID: LFUS-PAI-P-297180

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