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The Siemens & Halske T52, also known as the Geheimschreiber [1] ("secret teleprinter"), or Schlüsselfernschreibmaschine (SFM), was a World War II German cipher machine and teleprinter produced by the electrical engineering firm Siemens & Halske. The instrument and its traffic were codenamed Sturgeon by British cryptanalysts.
Siemens & Halske AG (or Siemens-Halske) was a German electrical engineering company that later became part of Siemens. It was founded on 12 October 1847 as Telegraphen-Bauanstalt von Siemens & Halske by Werner von Siemens and Johann Georg Halske .
Siemens & Halske was founded by Werner von Siemens and Johann Georg Halske on 1 October 1847. Based on the telegraph, their invention used a needle to point to the sequence of letters, instead of using Morse code. The company, then called Telegraphen-Bauanstalt von Siemens & Halske, opened its first workshop on 12 October. [11]
It is on the west side of the Grand River in the southwest corner of the township and extends west into Alpine Township. [7] [8] [9] Northview is a census-designated place and unincorporated community within the township. It is located between the boundaries with Grand Rapids, Grand Rapids Township, Comstock Park, and Belmont.
In 1847 Halske founded the Siemens & Halske Telegraph Construction Company together with Werner von Siemens. [1] Halske was particularly involved in the construction and design of electrical equipment such as the press which enabled wires to be insulated with a seamless coat of gutta-percha, the pointer telegraph and the morse telegraph and ...
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Gaines Charter Township is a charter township of Kent County in the U.S. state of Michigan. The population was 28,812 at the 2020 census. [3] The township is part of the Grand Rapids metropolitan area and is located about 3.0 miles (4.8 km) south of the city of Grand Rapids.
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