TESLA (originally named after Nikola Tesla, later explained as abbreviation from "TEchnika SLAboproudá", which means "low-voltage technology") was a large, state-owned electrotechnical conglomerate in the former Czechoslovakia.
The company was established as Elektra on 18 January 1921 and renamed TESLA on 7 March 1946. TESLA had a state-sponsored monopoly on electronics production in Czechoslovakia, and produced nearly all electronic products in the country until 1989. Many subsidiaries were created from the original brand, including those at Liptovský Hrádok, Hradec Králové, Pardubice, Žďár nad Sázavou, Bratislava, and Nižná. Later, some of them were transformed into independent state-owned companies.
After series of actions taken by Tesla a.s. against Tesla Motors Inc. the contract between Tesla Holding a.s. and Tesla Motors Inc. was signed on 06.10.2010 stating a coexistence of TESLA trademarks and regulating relationships between them. Preamble to the Tesla trademarks coexistence agreement: (A) Tesla Motors owns a number of trademark applications and registrations consisting of or containing the word TESLA.¨ (B) Tesla Holding owns a number of trademark applications and registrations consisting of or containing the word TESLA. (C) Tesla Holding and Tesla Motors wish to enter into a coexistence agreement relating to the TESLA trademark.
In 2015, the first primary battery comes to market under the trade name Tesla Batteries.
Source: Wikipedia, "Tesla (Czechoslovak company)", available under the CC-BY-SA License.