Nikola Tesla Patent #8 – Electro-magnetic motor – US 381968

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Patent Information
Publication number: US381968 A
Patent Title : Electro-magnetic motor
Publication type: Grant
Publication date: May 1, 1888
Inventors: Nikola Tesla

Critical Features disclosed in this patent
1. Mode and plan of operating electric motors by progressive shifting;
2. Field Magnet;
3. Armature;
4. Electrical conversion;
5. Economical;
6. Transmission of energy;
7. Simple construction;
8. Easier construction;
9. Rotating magnetic field principles

Note: Nikola Tesla was an inventor who obtained around 300 patents worldwide for his inventions. Some of Tesla’s patents are not accounted for, and various sources have discovered some that have lain hidden in patent archives. There are a minimum of 278 patents issued to Tesla in 26 countries that have been accounted for. Many of Tesla’s patents were in the United States, Britain, and Canada, but many other patents were approved in countries around the globe. Many inventions developed by Tesla were not put into patent protection.

Reference: https://en.wikipedia.org/wiki/List_of_Nikola_Tesla_patent

US381968