Matches in DBpedia 2016-04 for { ?s ?p "The HP-19C and HP-29C were scientific/engineering pocket calculators made by Hewlett-Packard between 1977 and 1979. They were the most advanced and last models of the \"20\" family (compare HP-25) and included Continuous Memory (battery-backed CMOS memory) as a standard feature. The HP-19C included a small thermal printer, one of the very few hand-held scientific calculators to offer such a feature (the HP-97 was a desktop unit, and later models like the HP-41C only supported external printers)."@en }
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- -29C comment "The HP-19C and HP-29C were scientific/engineering pocket calculators made by Hewlett-Packard between 1977 and 1979. They were the most advanced and last models of the \"20\" family (compare HP-25) and included Continuous Memory (battery-backed CMOS memory) as a standard feature. The HP-19C included a small thermal printer, one of the very few hand-held scientific calculators to offer such a feature (the HP-97 was a desktop unit, and later models like the HP-41C only supported external printers).".