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System Operations, Inc.
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Princeton, NJ, US
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Patents Grants
last 30 patents
Information
Patent Grant
Highly secure playing cards for instant lottery and games
Patent number
4,191,376
Issue date
Mar 4, 1980
Systems Operations, Inc.
Max Goldman
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Instant lottery game employing vending machines which are centrally...
Patent number
4,157,829
Issue date
Jun 12, 1979
System Operations, Inc.
Max Goldman
G07 - CHECKING-DEVICES
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