Assignee
SIGMA KK
JP·3 granted patents·128 citations·filing 1982–1988
Top patents by PatentIndex Score
3 records- 0190US4478407AMonitor game machineSIGMA KK·Filed 1982·Granted Oct 23, 1984·73 cites·2 claims
- 0271US4840290ABulk loaded coin dispensing machineSIGMA KK·Filed 1987·Granted Jun 20, 1989·42 cites·14 claims
- 0342US4923430ACoin payout apparatus in gaming deviceSIGMA KK·Filed 1988·Granted May 8, 1990·13 cites·1 claims
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