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Key duplication refers to the process of creating a key based on an existing key. Key cutting is the primary method of key duplication: a flat key is fitted into a vise in a machine, with a blank attached to a parallel vise, and the original key is moved along a guide, while the blank is moved against a blade, which cuts it.
Friden Flexowriter used as a console typewriter for the LGP-30 computer on display at the Computer History Museum. Model 1 SPD (Systems Programatic Double-case) equipped for edge-punched cards; most Flexowriters had paper-tape readers and punches. The Friden Flexowriter was a teleprinter produced by the Friden Calculating Machine Company.
Duplicating machines were the predecessors of modern document-reproduction technology. They have now been replaced by digital duplicators, scanners, laser printers and photocopiers, but for many years they were the primary means of reproducing documents for limited-run distribution. The duplicator was pioneered by Thomas Edison and David ...
A Polygraph is a duplicating device that produces a copy of a piece of writing simultaneously with the creation of the original, using pens and ink. Patented by John Isaac Hawkins on May 17, 1803, it was most famously used by the third U.S. president, Thomas Jefferson, who acquired his first polygraph in 1804 and later suggested improvements to ...
KeyMe kiosk. KeyMe's mobile app at one time, had users digitally scan their keys, the scans of which were then stored in the cloud. That data was then sent to physical kiosks, where new copies of those keys could be fabricated. Kiosks can also scan keys inserted directly into a scanning apparatus. [ 6] The machinery in the kiosks can quickly ...
The first key-activated mechanical calculators and many cash registers used "parallel" keys with one column of 0 to 9 for each position the machine could use. A smaller, 10-key input first started on the Standard Adding Machine in 1901. [11] The calculator had the digit keys arranged in one row, with zero on the left, and 9 on the right.
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