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 |