File:Stamp of Moldova - 2018 - Colnect 800838 - Nikola Tesla 1856-1943 Electric Induction Motor.jpeg
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DescriptionStamp of Moldova - 2018 - Colnect 800838 - Nikola Tesla 1856-1943 Electric Induction Motor.jpeg |
English: Nikola Tesla (1856-1943): Electric Induction Motor. The first AC commutator-free three-phase induction motors were independently invented by Galileo Ferraris and Nikola Tesla, a working motor model having been demonstrated by the former in 1885 and by the latter in 1887. Tesla applied for US patents in October and November 1887 and was granted some of these patents in May 1888 |
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Expiry date InfoField | 1945-05 | ||||
Format InfoField | Mini_Sheet | ||||
Themes InfoField | Electricity · Famous_People · Inventors · Men · Motorcycles | ||||
Emission InfoField | Commemorative | ||||
Issued on InfoField | 2018-05-03 | ||||
Size InfoField | 113 x 163 mm | ||||
Print run InfoField | 10,000 | ||||
Series InfoField | Inventions_and_Discoveries_that_Changed_the_World | ||||
Perforation InfoField | comb14 x 14½ | ||||
Paper InfoField | Matte, dull | ||||
Colors InfoField | Multicolor | ||||
Score InfoField | 80% Accuracy: Very Low | ||||
Related items InfoField | Philatelic_Product_(Related):_World_Heritage_Site,_Troya,_Çanakkale_(Turkey) | ||||
Printing InfoField | Offset lithography | ||||
Face value InfoField | 10*5.75 L - Moldovan leu | ||||
Gum InfoField | Ordinary | ||||
Watermark InfoField | None | ||||
Catalog codes InfoField | Michel MD 1046KB | ||||
Date | |||||
Source | https://colnect.com/en/stamps/stamp/800838-Nikola_Tesla_1856-1943_Electric_Induction_Motor-Inventions_and_Discoveries_that_Changed_the_World-Moldova | ||||
Author | Post of Moldova | ||||
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current | 15:05, 4 March 2022 | ![]() | 690 × 1,000 (211 KB) | Gone Postal (talk | contribs) | Colnect |
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JPEG file comment | colnect.com |
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