4. Pumps
  5. Condition responsive control of drive transmission or pump...
  6. Adjustable cam or linkage

John W Tolbert, Jr.

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Two stage reciprocating compressors and associated HVAC systems

Pumps – Condition responsive control of drive transmission or pump... – Adjustable cam or linkage
Patent

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Two stage reciprocating compressors and associated HVAC...

Refrigeration – Processes – Circulating external gas
Reexamination Certificate

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Two stage reciprocating compressors and associated HVAC...

Electricity: electrical systems and devices – Safety and protection of systems and devices – Compressor protective circuits
Reexamination Certificate

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Two stage reciprocating compressors and associated HVAC...

Refrigeration – Automatic control – Selective heating or cooling
Reexamination Certificate

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Profile ID: LFUS-PAI-P-690389

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