During the communist era of the Czechoslovak Republic the Ministry of Industry established a single nationalised company called CSHN (Ceskoslovenske Hudebni Nastroje, which translates as Czechoslovak Musical Instruments). CSHN then allocated  the production of guitars to various nationalised factories. The resulting instruments were labelled with brands including Jolana, Resonet, Neoton, Lignatone and Tatra - even though they were made in the same factories. CSHN lasted from around 1948 until 1989.

The CSHN brand still exists today as a producer of musical instruments (presumably now as a private company?)

Source: JunkGuitars.com: Four decades of guitars from Czechoslovakia.