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bon état, HP - Calculatrice hewlett packard 1939/1989 Dimensions: 8 x 14.5 x 1 cm.
Hewlett-Packard HP-35 Handheld Electronic Calculator
Hewlett-Packard HP87 found in the trash. Anyone know anything about this? Powers up but nothing on the screen. : r/vintagecomputing
More than 100 built-in math and science functions Powerful built-in program library Essential trig and math functions Base conversions and arithmetic
HP 32Sii Scientific Calculator
Hewlett-Packard HP 15C Scientific Handheld Calculator USA Made
File:File-Hewlett-Packard calculator, front (HP-22S), bought in 1989 - photograph.jpg - Wikimedia Commons
File:Vintage Hewlett-Packard Model 21 Electronic Pocket Calculator, Made in the U.S.A., A Scaled-Down HP 25, Circa 1975 (11574422413).jpg - Wikimedia Commons
Mathematical Treasure: Hewlett-Packard HP-28S Handheld Electronic Calculator from the AMS Centennial Meeting
HP 2100 - Wikipedia
HP-25
HP Office Calculators
HP Hewlett-Packard F2231AA 12c Financial Calculator 10-Digit LCD at