
Willard Bundy
At the end of the 1880s the American businessman Willard Legrand Bundy (1845-1907), an owner of a jewelry store in Auburn, New York, devised the first electric cash-register in the world. The patent application was filed in September 1889 and the device was patented on 23 December 1890 (US patent..Read More
Melvin Lovell
Starting from 1869, the young carpenter by trade, Melvin Newton Lovell (1844-1895) from Erie, Pennsylvania, later a wooden-ware manufacturer and successful businessman, received numerous patents for various devices, between them several patents for adding machines (cash registers). Lovell’s first patent for cash indicating, registering, and accounting machine (US patent Nr...Read More
Eri Jewett
In the late 1880s Eri Ferris Jewett (1835-1916), a civil engineer and surveyor from Newtown, Hamilton County, Ohio, invented a simple calculating device, one of the many incarnations of Abaque Rhabdologique of Claude Perrault. In April 1890 Jewett applied for a patent, which was granted on 17 February 1891 (US..Read More
Lewis Hosea and William Beardsley
In December 1889, Lewis Hosea, a lawyer and amateur mechanic, and William Beardsley, a businessman, both from Cincinnati, Ohio, applied for a patent for one-column keyboard adding machine (suitable for adding one-digit numbers). The patent was granted on 3 March 1891 (US patent Nr. 447457). Besides the patent application, nothing..Read More
Harry Rumble
On 15 September 1890, the young architect and civil engineer Harry Humfrey Rumble (1866-1948), from Westgate-on-Sea, a small seaside town in the northeast county of Kent, England, received a Great Britain patent for a keyboard adding machine (patent No. 14527). Next year, on 3 November 1891, the machine was patented..Read More
Samuel Huizer
The Dutch engineer Samuel Leendert Huizer (1842-1899) had quite a few patents from the 1890s for various machines, between them several patens for a keyboard-operated adding machine: Germany (pat. №67678, 9 Mar 1892, and №70750, 31 Jan 1893), Belgium (No. 97493, 8 Dec 1891), France (No. 222997, 15 Jul 1892),..Read More
Heinrich Proskauer
One of the first adding machines with full keyboard construction in Germany and Europe was created around 1890 by the engineer Heinrich Proskauer in Berlin. Later the construction of Proskauer was implemented in Sumlock Duolectric 912/C adding machine, which had a supporting electric drive. Heinrich Proskauer received two German patents..Read More
Peter Landin
Peter J. Landin (1858-1940), a Sweden-born American inventor and businessman, commenced his work on calculating machines in the late 1880s, then living in Minneapolis, Minnesota. In September 1890 Landin applied for his first patent in this area, US patent No. 482014 for Cash Indicator, Register and Recorder. In February 1891..Read More
Heinrich Esser
In the early 1890s, the German civil engineer Heinrich Esser (1845–1906), who lived in Aachen, where he worked as a municipal police building inspector, invented as a hobby and in his spare time the mechanical calculating machine, which he later patented in Germany (patent №82965, 10 December 1892), and USA..Read More
Otto Steiger and Hans Egli
In December 1892 the brilliant Swiss engineer Otto Steiger from St. Gallen (1858-1923), who lived in Munich, received his first patent for a calculating machine of direct multiplication type (German patent DE 72870). Next years the machine was patented in Switzerland (No. CH6787), Great Britain (No. GB20968), France (FR228628), USA..Read More




