4. Internal-combustion engines
  5. Oscillating piston
  6. Toroidal cylinder

Herbert Huettlin

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Oscillating piston engine

Internal-combustion engines – Oscillating piston – Toroidal cylinder
Reexamination Certificate

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Oscillating piston machine

Internal-combustion engines – Rotary – With compression – combustion – and expansion in a single...
Reexamination Certificate

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Oscillating piston machine

Internal-combustion engines – Oscillating piston – Toroidal cylinder
Reexamination Certificate

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Oscillating-piston machine

Internal-combustion engines – Oscillating piston – Toroidal cylinder
Reexamination Certificate

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Rotary piston machine

Internal-combustion engines – Rotary reciprocating piston
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Profile ID: LFUS-PAI-P-2344203

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