参考文献:
Gen. Aniline Works Patent: FR8253 Full Text Show Details Gen. Aniline Works Patent: US2233 , 935 Full Text Show Details I.G. Farbenind. Patent: DE66833 , 935 Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 25, p. 6
参考文献:
Gen. Aniline Works Patent: FR8253 Full Text Show Details Gen. Aniline Works Patent: US2233 , 935 Full Text Show Details I.G. Farbenind. Patent: DE66833 , 935 Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 25, p. 6