Siemens & Halske
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Siemens & Halske AG (or Siemens-Halske) was a German electrical engineering company that later became part of Siemens AG.
Siemens & Halske AG was founded in 1897 when the former Telegraphen-Bauanstalt Siemens & Halske became a stock corporation. When Siemens & Halske merged parts of its activities with Schuckert & Co. in 1903 to become Siemens-Schuckert, Siemens & Halske AG specialized in communications engineering. During World War I, rotary engines of advanced and unusual design were produced under the Siemens-Halske brand, like the Siemens-Halske Sh.I and Sh.III. Later Siemens established several company subsidiaries for which the Siemens & Halske AG functioned as a holding company.