参考文献:
Du Pont de Nemours and Co. Patent: US25669 , 199 Full Text Show Details Gaudry Canadian Journal of Research, Section B: Chemical Sciences, 198 , vol. 26, p. 87,90,91
参考文献:
Du Pont de Nemours and Co. Patent: US25669 , 199 Full Text Show Details Gaudry Canadian Journal of Research, Section B: Chemical Sciences, 198 , vol. 26, p. 87,90,91