On July 24, 1897, the Bulgarian technical community registered a patent that entered the history of transport technologies. The innovative four-stroke automobile engine represents a revolutionary moment for domestic mechanical engineering, demonstrating the high level of engineering thought in the country.
Created by local designers, the prototype underwent in-depth testing, proving its functionality and potential. Although mass production of automobiles was yet to be developed in the following decades, this patent became a symbolic start of the Bulgarian automotive industry.
The technical achievement was perceived as proof of the innovative spirit of Bulgarian engineers. Automobile clubs and technical universities continue to mark this date as a key moment, illustrating Bulgaria's ability to generate high-tech solutions in the transport sector.
The 1897 patent became an emblematic memory of national technical pride, highlighting the potential of Bulgarian inventors to create competitive technological solutions at that time.