thumb|Speno rail grinding train in Germany Speno International SA is a manufacturer of railway track maintenance machines.
thumb|Speno rail grinding train in Germany Speno International SA is a manufacturer of railway track maintenance machines.
The Speno company was founded by Frank Speno in 1960 and is now headquartered in Switzerland. It operates maintenance trains in many countries. The Speno trains are bright yellow in color.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).