for vertical blows on a horizontal surface

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Patents Grantslast 30 patents

Information Patent Grant
System of impact measurement and display
- Patent number 6,533,706
- Issue date Mar 18, 2003
- Tomorrow's Exerprizes
- George S. Morrow
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Tester for impact performance
- Patent number 6,318,148
- Issue date Nov 20, 2001
- Dietrick E. Alkonis
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
3162440
- Patent number 3,162,440
- Issue date Dec 22, 1964
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
3017181
- Patent number 3,017,181
- Issue date Jan 16, 1962
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
2224060
- Patent number 2,224,060
- Issue date Dec 3, 1940
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
2141948
- Patent number 2,141,948
- Issue date Dec 27, 1938
- A63 - SPORTS GAMES AMUSEMENTS