Person ? F. Champromis
- From 1940-01-01 to 1948-12-31, Commissaire des comptes of MINES DE LA BOUBLE
- From 1945-01-01 to 1953-12-31, Commissaire des comptes of Etablissement Labbé
- From 1948-01-01 to 1953-12-31, Administrateur of ETABLISSEMENTS FERRAND ET RENAUD