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