Stamps 1955 Belgian inventors
From right to left:
- Leo Hendrik Baekeland (Belgian chemist).
- Egide Walschaerts (Belgian engineer).
- Émile Fourcault , E. Gobbe.
- Ernest Gaston Joseph Solvay (Belgian chemist, industrialist).
- Jean-Jacques Daniel Dony (Belgian inventor).
- Jean Joseph Étienne Lenoir (Belgian engineer).
Δεν υπάρχουν σχόλια:
Δημοσίευση σχολίου