CONTEST
CompetedPrize
$7,000
$7,000
DEADLINE
This contest is closed.
This contest is closed.
Patent Known References
| Type | Patent Country | Patent Number |
|---|---|---|
| Patent | US | 4897727 |
| Patent | US | 6055560 |
| Patent | US | 6745393 |
| Patent | GB | 2218234A |
| Patent | JP | 2000236528A |
| Patent | JP | 2001100871A |
| Patent | JP | 2001128077A |
| Patent | JP | H10108087A |
| Patent | JP | H10178621A |
| Patent | JP | H11275476A |
