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1976 HP International Users Group Baltimore -
1978 HP General System Users Group Denver -
1979 HP General System Users Group Lyon, France -
1980 HP General System Users Group San Jose -
1981 HP General System Users Group Orlando -
1981 HP International Users Group Berlin -
1982 HP International Users Group San Antonio -
1984 HP International Users Group Anaheim -
1986 Interex Madrid -
1988 Interex Orlando