4. Marine propulsion
  5. Self-propelled vehicle having land and water propulsion means
  6. Flexible endless track propulsion means

Larry Prestenbach

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Head and tail sprocket assemblies for a marsh excavator

Wheel substitutes for land vehicles – With track support intermediate of end wheels – Including end wheel support for movement to maintain track...
Reexamination Certificate

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Marsh excavator

Marine propulsion – Self-propelled vehicle having land and water propulsion means – Flexible endless track propulsion means
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2548583

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