↑ « Krebs Pigment & Chemical Company [archive] », DuPont (consulté le ) : « Founded in 1902 by Henrick J. Krebs, Krebs Pigments and Chemical Company produced lithopone, a widely used white paint pigment also manufactured by DuPont. But Krebs' company had another asset of special interest to DuPont. … »
...
2025-08-14 05:00
1133