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On 8 July 1908, the first commercial paper coffee filter was a 94 mm round filter disk devised by the German entrepreneur Melitta Bentz. [13]: 140– [18] She wanted to remove the bitter taste caused by overbrewing.
In 2013, Fairphone launched its first "socially ethical" smartphone at the London Design Festival to address concerns regarding the sourcing of materials in the manufacturing [164] followed by Shiftphone in 2015. [165] In late 2013, QSAlpha commenced production of a smartphone designed entirely around security, encryption and identity ...
Motorola Pageboy was the second pager produced by Motorola with individual-unit addressing, [clarification needed] after the lesser-known "Handie-Talkie Radio Pocket Pager" from 1955. [citation needed] The first pager-like system was used in 1921 by the Detroit Police Department.
Founded by Hsu Ching-kuang in October 1995, Gold Apollo produces POCSAG/FLEX pager. Initially, the company only produced numeric pagers and focused on the domestic market. However, in 1999, when Taiwan's Chunghwa Telecom announced it would no longer issue pager numbers, the pager market collapsed overnight. In response, Gold Apollo began ...
The First Party System was the political party system in the United States between roughly 1792 and 1824. [1] It featured two national parties competing for control of the presidency, Congress, and the states: the Federalist Party, created largely by Alexander Hamilton, and the rival Jeffersonian Democratic-Republican Party, formed by Thomas Jefferson and James Madison, usually called at the ...
Jesse Reno also designed the first escalators installed in any underground subway system in the form of a helical escalator at Holloway Road tube station in London in 1906. The experimental device never saw public use and its remains are now in the London Transport Museum's depot in Acton. [29] [30]
Use of low-outgassing materials such as certain stainless steels; Avoid creating pits of trapped gas behind bolts, welding voids, etc. Electropolishing of all metal parts after machining or welding; Use of low vapor pressure materials (ceramics, glass, metals, teflon if unbaked) Baking of the system to remove water or hydrocarbons adsorbed to ...
The American system of manufacturing was a set of manufacturing methods that evolved in the 19th century. [1] The two notable features were the extensive use of interchangeable parts and mechanization for production, which resulted in more efficient use of labor compared to hand methods.
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