4. Ships
  5. Ballasting
  6. Floats

Walter A. Schulz

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Adjustable roller furling spar

Ships – Sail or control means therefor – Reefing and furling
Patent

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Power boat with improved hull

Ships – Hull or hull adjunct employing fluid dynamic forces to... – Having hydrofoil
Reexamination Certificate

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Sailboat for sailing in shallow water

Ships – Displacement-type hull
Reexamination Certificate

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Sailboat with hydrofoil members

Ships – Ballasting – Floats
Patent

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Profile ID: LFUS-PAI-P-969690

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