Person ? P. Schuhler
- From 1933-01-01 to 1933-12-31, Conseiller de surveillance of LAMBERT FRERES ET Cie
- From 1940-01-01 to 1940-12-31, Membre du Comité de surveillance of LAMBERT FRERES ET Cie
- From 1948-01-01 to 1953-12-31, Administrateur of QUARTZ ET SILICE