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The Hildebrand & Wolfmüller patent of 20 January 1894, No. 78553 describes a {{convert|1489|cc|cuin|abbr=on}} [[Straight-two engine|two-cylinder]], [[four-stroke engine]], with a bore and stroke of 90x117mm. It produced 1.9kW @ 240 rpm<ref name=Walker1998/> propelling a weight of 50kg<ref name=Page1924/> up to a maximum speed of 28mph<ref name=Walker1998/>. | The Hildebrand & Wolfmüller patent of 20 January 1894, No. 78553 describes a {{convert|1489|cc|cuin|abbr=on}} [[Straight-two engine|two-cylinder]], [[four-stroke engine]], with a bore and stroke of 90x117mm. It produced 1.9kW @ 240 rpm<ref name=Walker1998/> propelling a weight of 50kg<ref name=Page1924/> up to a maximum speed of 28mph<ref name=Walker1998/>. | ||
Examples exist today in the [[Deutsches Zweirad- und NSU-Museum]] in Neckarsulm, Germany, Science Museum in London, The Henry Ford in Detroit, Michigan, the Wells Auto Museum in | Examples exist today in the [[Deutsches Zweirad- und NSU-Museum]] in Neckarsulm, Germany, Science Museum in London, The Henry Ford in Detroit, Michigan, the Wells Auto Museum in Wells, Maine,<ref>[http://www.wellsautomuseum.com/collection.htm Wells Auto Museum] Our Collection.</ref> and the Museum Lalu Lintas in Surabaya, Indonesia. | ||
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