4. Amusement devices: games
  5. Puzzles
  6. Jumping movement

Douglas A. Engel

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Adjustable hand wrench

Tools – Tool jaw – Jaw-actuating means
Patent

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Linked moebius band

Jewelry – symbolic insignia – and ornaments – Jewelry – Encircling – i.e. – necklace – bracelet – etc.
Patent

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Puzzle

Amusement devices: games – Puzzles – Jumping movement
Patent

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Puzzle amusement device

Amusement devices: games – Puzzles – Take-aparts and put-togethers
Patent

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Puzzle amusement device

Amusement devices: games – Puzzles – Folding and relatively movable strips and disks
Patent

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Profile ID: LFUS-PAI-P-301981

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