PASCALINE Inventor Blaise Pascal Invention date 1642 Manufacturing date: 1642-1655 Manufacturing location Rouen and later Paris, France Manufacturer Blaise Pascal and later by artisans under his supervision Dimensions L 36 H 13 P 8 Reference Number Unknown Contact Us
ULTRA WASHINGTON Inventor Unknown Invention date Early 20th century (specific date not well-documented) Manufacturing date: Early to mid-20th century Manufacturing location Italy Manufacturer Ultra Dimensions L 30 H 20 P 5 Reference Number Unknown Contact Us
LOCKE ADDER Inventor William Henry Locke Invention date 1901 Manufacturing date: 1901 onwards Manufacturing location New York, USA Manufacturer The Locke Adder Company Dimensions L 13 H 6 P 1 Reference Number Unknown Contact Us
TATE’S ARITHMOMETER Inventor Samuel Tate Invention date 1875 Manufacturing date: 1875 onwards Manufacturing location London, United Kingdom Manufacturer C & E Layton Dimensions L 30 H 18 P 12 Reference Number Unknown Contact Us
RECHENMASCHINE ARCHIMEDES MODELL C16 Inventor Reinhold Pöthig Invention date 1920 Manufacturing date: 1920 onwards Manufacturing location Glashütte, Saxony, Germany Manufacturer Archimedes Company (Archimedes AG, later renamed to Reinhold Pöthig AG) Dimensions L 36 H 15 P 14 Reference Number Unknown Contact Us
ADIX Inventor Josef Pallweber Invention date Early 20th century Manufacturing date: Circa 1920s Manufacturing location Austria Manufacturer Adix Company Dimensions L 13 H 7 P 2 Reference Number Unknown Contact Us
LOGA STANLEY Inventor Stanley Company Invention date Around 1908 Manufacturing date: Around 1908 Manufacturing location Unknown Manufacturer Stanley Company Dimensions L 20 H 15 P 10 Reference Number Unknown Contact Us
COMPTOMETER Inventor Dorr Eugene Felt Invention date 1887 Manufacturing date: 1887 onwards Manufacturing location Chicago, Illinois, USA Manufacturer Felt & Tarrant Manufacturing Company Dimensions L 25 H 18 P 15 Reference Number Unknown Contact Us
C.H. WEBB THE ADDER Inventor Clarence Hobbs Webb Invention date 1868 Manufacturing date: 1869 onwards Manufacturing location New York, USA Manufacturer C.H. Webb Dimensions L 9 H 8 P 1,5 Reference Number Unknown Contact Us
PLANIMETER AMSLER Inventor Jacob Amsler Invention date 1854 Manufacturing date: 1854 onwards Manufacturing location Schaffhausen, Switzerland Manufacturer Amsler-Laffon Dimensions L 15 H 5 P 2 Reference Number Unknown Contact Us
