4. Internal-combustion engines
  5. Rotary

Theodore O. Groeger

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Cold storage pack

Refrigeration – Cooled enclosure – Portable receptacle
Patent

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Convertible airplane

Aeronautics and astronautics – Composite aircraft
Patent

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Flexible cylinder engine

Internal-combustion engines – Rotary
Patent

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Flexible cylinder engine

Internal-combustion engines – Particular piston and enclosing cylinder construction – Cylinder detail
Patent

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Tetrahedral windmill

Prime-mover dynamo plants – Fluid-current motors – Wind
Patent

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Profile ID: LFUS-PAI-P-226378

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