4. Friction gear transmission systems or components
  5. Stepless ratio change
  6. Driving and driven gears on nonlinear angularly related axes

Bret J. Park

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Continuous variable-ratio transmission

Friction gear transmission systems or components – Stepless ratio change – Driving and driven gears on nonlinear angularly related axes
Patent

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Continuously variable reciprocating transmission device

Machine element or mechanism – Elements – Cranks and wrist pins
Patent

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Continuously variably reciprocating transmission

Machine element or mechanism – Elements – Cranks and wrist pins
Reexamination Certificate

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Variable displacement engine

Internal-combustion engines – Multiple cylinder – Having rotary output shaft parallel to cylinders
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1703521

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