This company was later known as the "Dassault Aviation" aircraft factory (see Dassault). The "Avions Marcel Bloch" company was famous for its aircraft.

-But in 1939 they cooperated in the construction of two small engines, which were presented that year at the Paris Air Show.

-The 4-A1 model had four inverted cylinders and gave 95 CV and the other model, the 6-B1 gave 180 CV with the same architecture.

From Appendix 11: After the Second World War, Marcel Bloch changed his name to Marcel Dassault and founded the "Dassault Aviation" company.