Updated: May 23, 2025 by Heather | Leave a Comment
Key Points: Born in southeast England, Leonard Stowe set off to New Zealand when he was just 21 years old. […]
: Spalding Adding Machine Cyrus G. Spalding of Boston, Massachusetts, was a holder of two US patents for adding machines: […]
: Samuel Webb Samuel J. Webb (1862-1909) was a businessman and prolific inventor from Minden, Louisiana. He invented more than […]
: Jacob Schnarrenberger Jacob H. Schnarrenberger of Springfield and Greenfield, Ohio, was a holder of quite a few (at least […]
: Who Was Dr. Walter Snelling? Born on December 13, 1880, Dr. Walter Snelling was a chemist and a significant […]
: Brainard Smith was an American inventor and engineer from Sacramento. He is best known for the creation of […]
: David Marion Rush David Marion Rush of Louisburg, Missouri, applied for a patent for ten-key non-printing manually operated adding […]
: Martial Roussel On 3 October 1853, Martial Roussel, a member of the Amiens Academy (Somme), applied for a patent […]
Updated: May 23, 2025 by History Computer Staff | Leave a Comment
Who was Reuben Rodney James? Reuben Rodney James worked as a farmer and in a woolen mill. He also invented […]
: James Ritty In 1878 one James Ritty (see biography of James Ritty), a 42 years old saloon keeper from […]
: Harry Humfrey Rumble On 15 September 1890, the young architect and civil engineer Harry Humfrey Rumble (1866-1948), from Westgate-on-Sea, […]
: The early work of John Henry and Caleb Sherwood Odell in their pipe organ-building firm cannot be discussed […]
Who Were Moses and William Pullen? Moses and William Pullen are known for their invention of the Bentham Calculating Machine. […]
Fawcett Plumb On 17 June 1881, Fawcett Plumb (1834-1919), a businessman, politician, and prolific inventor from Streator, Illinois, (see the […]
Updated: May 23, 2025 by Austin S. | Leave a Comment
Adding machines are some of the most fascinating inventions and are important too. The early inventions were instrumental in […]
William Pratt was a mathematician and a member of the active circle of London’s Mathematical teachers. William Pratt invented […]
Updated: May 23, 2025 by Rebecca Bales | Leave a Comment
With at least 33 patents in the U.S. alone, William Prehn Quentell was responsible for many inventions and is […]
Who Was John Pfeifer? John Pfeifer was a bookkeeper and a remarkable inventor with over 60 patents to his name. […]
David Nelson In April of 1860, David R. Nelson of Jackson, Ohio, patented (US patent №28006) a keyboard machine for […]
Updated: May 23, 2025 by Lisha Pace | Leave a Comment
: Nystrom’s Calculator In the late 1840s the young Swedish immigrant, John William Nystrom, who lived in Philadelphia, invented a calculating […]
The Apparatus for Making Calculations of Francis Marston In 1842 a certain Francis Marston of Aston, Parish of Hopesay, County of […]
Updated: May 23, 2025 by Abby | Leave a Comment
: Max Mayer In 1881 the German inventor Max Mayer from Munich devised an adding machine, which was patented in 1884 […]
Who Was William Macnider? In 1884, John Macnider of Greensborough, Georgia, applied for a patent for a keyboard adding machine. […]
: Who was Peter Lindholm? Peter Trulson Lindholm was born on April 4th, 1850, in Ysone, Blekinge, Sweden. Lindholm emigrated to […]
