4. Flexible or portable closure, partition, or panel
  5. Plural strip, slat, or panel type
  6. Venetian blind type

William C. Schultz

Inventor

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Thrust enhancing propeller duct assembly for water craft

Marine propulsion – Screw propeller – Having means to control flow around propeller
Patent

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Thrust enhancing propeller guard assembly

Marine propulsion – Screw propeller – Propeller guard
Reexamination Certificate

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Venetian blind with smooth bottom rail

Flexible or portable closure – partition – or panel – Plural strip – slat – or panel type – Venetian blind type
Patent

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Profile ID: LFUS-PAI-P-1432667

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