with screw elements

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Patents Grantslast 30 patents

Information Patent Grant
Cube puzzle
- Patent number 6,460,850
- Issue date Oct 8, 2002
- Samuel M. Dodek
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Bolt block puzzle apparatus
- Patent number 5,152,530
- Issue date Oct 6, 1992
- Samuel M. Dodek
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Puzzle bolt
- Patent number 5,147,093
- Issue date Sep 15, 1992
- Roger B. Tisdale
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
3813099
- Patent number 3,813,099
- Issue date May 28, 1974
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
1111337
- Patent number 1,111,337
- Issue date Sep 22, 1914
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
865207
- Patent number 865,207
- Issue date Sep 3, 1907
- A63 - SPORTS GAMES AMUSEMENTS