An Italian, he worked with the likes of Buchet and Blériot. His engine powered Blériot's aircraft for his historical cross-Channel flight.
Charles-Henri Brasier
Worked with the Mors Brothers, and with Georges Richard. His cars won the 1905 Gordon Bennett Trophy to tremendous aclaim.
Henri Cissac ( -1908)
Mentioned in the motorcycle press several times in the years 1904-1908.
1908 Died in an accident at the French Grand Prix.
Pierre Collignon
His racing career began in the 1930s, and from the late 1940s to 1955 he raced Moto Guzzi motorcycles. He also broke several sidecar world records in 1955 at Montlhéry with a Moto Guzzi 250 cc combination.
Working with Nougier, in 1953 they built a four-cylinder 500cc road-race to challenge Gilera and MV, but lack of developmental funding was a large factor in the unsuccessful venture.
Pierre's father Auguste was the owner of the Collignon AC iron foundries of Deville and Paris, which notably produced cylinders for French motorcycle manufacturers. The letters "FC" may found on castings for the Terrot 175 LSS 1924. "FC" = "Fonderie Colignon". That business became Ets Pierre Collignon, producing among other product magnesium brake hubs.
More information: https://atf.asso.fr/wordpress/wp-content/uploads/2019/05/TNF24_HP_Pierre-Collignon_FondeurMotocycliste_V1.pdf
Not to be confused with Marcel Fournier
Louis Lepoix
Worked with many German companies. Some 3000 projects were completed during his 50 years of activity, among them fine automobiles like the 1952 Bugatti Cabriolet.
Marcel Violet
Marcel Violet was involved with a number of French firms.
He built the CSV Scooter in the early 1920s, and was in a partner with Charles Benoît and Abel Bardin in Sicam.
Violet and Achille Vincent designed an amphibious Sevitame military motorcycle, and after the war he worked with Bernardet