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- Eric_Tigerstedt abstract "Eric Magnus Campbell Tigerstedt (August 4, 1887 – April 20, 1925) was one of the most significant inventors in Finland at the beginning of the 20th century and has been called the "Thomas Edison of Finland". He was a pioneer of sound-on-film technology and made significant improvements to the amplification capacity of the vacuum valve. Having seen a showing of the Lumière brothers' new motion picture technology as a 9-year-old boy in Helsinki in 1896, he was inspired to bring sound to silent pictures.Many years later, in 1914, his demonstration film Word and Picture was presented to a gathering of scientific dignitaries in Berlin, but his invention was never commercialised. In addition to improving the triode vacuum valve, he developed directional loudspeakers. Tigerstedt also predicted such future inventions as television and the mobile phone, and in 1917 he filed a patent for what he described as a "pocket-size folding telephone with a very thin carbon microphone". Tigerstedt was awarded a total of 71 patents in several countries between the years 1912 and 1924.".
- Eric_Tigerstedt birthDate "1887-08-04".
- Eric_Tigerstedt birthPlace Finland.
- Eric_Tigerstedt birthPlace Helsinki.
- Eric_Tigerstedt birthYear "1887".
- Eric_Tigerstedt deathDate "1925-04-20".
- Eric_Tigerstedt deathPlace New_York_City.
- Eric_Tigerstedt deathPlace United_States.
- Eric_Tigerstedt deathYear "1925".
- Eric_Tigerstedt occupation Eric_Tigerstedt__1.
- Eric_Tigerstedt viafId "48151941".
- Eric_Tigerstedt wikiPageExternalLink showarticle.asp?intNWSAID=25818.
- Eric_Tigerstedt wikiPageExternalLink index.html.
- Eric_Tigerstedt wikiPageExternalLink tigerstedt_2.jpg.
- Eric_Tigerstedt wikiPageExternalLink tigerstedt.html.
- Eric_Tigerstedt wikiPageExternalLink kaupunkijaseutu.shtml.
- Eric_Tigerstedt wikiPageExternalLink www.koethen-anhalt.de.
- Eric_Tigerstedt wikiPageExternalLink tigerstedt.html.
- Eric_Tigerstedt wikiPageID "9442124".
- Eric_Tigerstedt wikiPageRevisionID "605995451".
- Eric_Tigerstedt birthDate "1887-08-04".
- Eric_Tigerstedt birthPlace Finland.
- Eric_Tigerstedt birthPlace Helsinki.
- Eric_Tigerstedt child "Carl Axel Waldemar Tigerstedt".
- Eric_Tigerstedt dateOfBirth "1887-08-04".
- Eric_Tigerstedt dateOfDeath "1925-04-20".
- Eric_Tigerstedt deathDate "1925-04-20".
- Eric_Tigerstedt deathPlace New_York_City.
- Eric_Tigerstedt deathPlace United_States.
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- Eric_Tigerstedt name "Eric M. C. Tigerstedt".
- Eric_Tigerstedt name "Tigerstedt".
- Eric_Tigerstedt occupation "inventor".
- Eric_Tigerstedt placeOfBirth Finland.
- Eric_Tigerstedt placeOfBirth Helsinki.
- Eric_Tigerstedt placeOfDeath New_York_City.
- Eric_Tigerstedt placeOfDeath United_States.
- Eric_Tigerstedt shortDescription "Finnish inventor".
- Eric_Tigerstedt spouse "Ingrid Lignell".
- Eric_Tigerstedt description "Finnish inventor".
- Eric_Tigerstedt description "Finnish inventor".
- Eric_Tigerstedt subject Category:1887_births.
- Eric_Tigerstedt subject Category:1925_deaths.
- Eric_Tigerstedt subject Category:Finnish_businesspeople.
- Eric_Tigerstedt subject Category:Finnish_electrical_engineers.
- Eric_Tigerstedt subject Category:Finnish_inventors.
- Eric_Tigerstedt subject Category:People_from_Helsinki.
- Eric_Tigerstedt subject Category:Swedish-speaking_Finns.
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- Eric_Tigerstedt comment "Eric Magnus Campbell Tigerstedt (August 4, 1887 – April 20, 1925) was one of the most significant inventors in Finland at the beginning of the 20th century and has been called the "Thomas Edison of Finland". He was a pioneer of sound-on-film technology and made significant improvements to the amplification capacity of the vacuum valve.".
- Eric_Tigerstedt label "Eric Tigerstedt".
- Eric_Tigerstedt label "Eric Tigerstedt".
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- Eric_Tigerstedt name "Eric M. C. Tigerstedt".
- Eric_Tigerstedt name "Tigerstedt".