Gen.Aniline Works
Patent: US2013180 , 1934 ;

Full Text Show Details
I.G.Farbenind.
Patent: DE604278 , 1933 ;
Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 21, p. 972,973
Full Text Show Details
I.G.Farbenind.
Patent: DE611399 , 1934 ;