Léon Jean Laurent Demany

• 
• Born on April 28, 1856 in Liège
• Deceased on December 30, 1929, at the age of 73 years

Family

• Married on May 14, 1881 in Liège, with Emma Henri Victoir Antoine Chaudoir (1857 - 1924)

Occupations

• ingénieur A