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Valdemar Ludvigsen
Hans Valdemar Ludvigsen (20 September 1861 – 11 February 1939) was a Danish businessman and landowner. He owned the Hellesens battery manufacturer in Copenhagen. Early life and education Ludvigsen was born on 20 September 1861 in Copenhagen, the son of Christian Adam L. (1826-1900) and Henriette Frederikke Geisler (1834-1927). His father owned a chemical factory. He attended Odense Cathedral School before studying Applied Chemistry. He also traveled to England and North and Central America, where he studied electrical chemistry and telephone engineering. Career After returning to Denmark in 1887, he partnered with Wilhelm Hellesen who had just obtained a patent on a dry cell battery. In rented premises at Blågårdsgade, Hellesen and Ludvigsen continued to work on the invention. After Hellesen's death, it was commercialized by Ludvigsen and Hellesen's widow as Hellesens Enke / V. Ludvigsen. In 1896 Lidvigsen succeeded in finding the composition of the electrolyte paste that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hans Valdemar Ludvigsen
Hans may refer to: __NOTOC__ People * Hans (name), a masculine given name * Hans Raj Hans, Indian singer and politician ** Navraj Hans, Indian singer, actor, entrepreneur, cricket player and performer, son of Hans Raj Hans ** Yuvraj Hans, Punjabi actor and singer, son of Hans Raj Hans * Hans clan, a tribal clan in Punjab, Pakistan Places * Hans, Marne, a commune in France * Hans Island, administrated by Greenland and Canada Arts and entertainment * Hans (film), ''Hans'' (film) a 2006 Italian film directed by Louis Nero * Hans (Frozen), the main antagonist of the 2013 Disney animated film ''Frozen'' * Hans (magazine), ''Hans'' (magazine), an Indian Hindi literary monthly * ''Hans'', a comic book drawn by Grzegorz Rosiński and later by Zbigniew Kasprzak Other uses * Clever Hans, the "wonder horse" * ''The Hans India'', an English language newspaper in India * HANS device, a racing car safety device * Hans, the ISO 15924 code for Simplified Chinese characters See also *Han (dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
