4. Expansible chamber devices
  5. Oscillating working member or cylinder therefor

Robert A. Frenzel

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Rotary actuator

Expansible chamber devices – Oscillating working member or cylinder therefor
Patent

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Rotary actuator and seal assembly for use therein

Expansible chamber devices – Oscillating working member or cylinder therefor
Patent

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Valve assembly

Valves and valve actuation – Rotary valves – Seat or interface seal
Patent

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Valve assembly having improved valve seat

Valves and valve actuation – Rotary valves – Butterfly
Patent

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Profile ID: LFUS-PAI-P-439381

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