[1]CurrentPatentAssignee:I.G.FARBENINDUSTRIEAG(historic)-DE642758,1935,C[Fortschr.Teerfarbenfabr.Verw.Industriezweige,vol.23,p.541,543][Fortschr.Teerfarbenfabr.Verw.Industriezweige,vol.23,p.541,543]
[1]CurrentPatentAssignee:Ciba-BE620741,1963,A[Chem.Abstr.,1963,vol.59,#11359][Chem.Abstr.,1963,vol.59,#11359]
[1]CurrentPatentAssignee:Ciba-BE620741,1963,A[Chem.Abstr.,1963,vol.59,#11359][Chem.Abstr.,1963,vol.59,#11359]
[1]CurrentPatentAssignee:Ciba-BE620741,1963,A[Chem.Abstr.,1963,vol.59,#11359][Chem.Abstr.,1963,vol.59,#11359]
[1]CurrentPatentAssignee:Ciba-BE620741,1963,A[Chem.Abstr.,1963,vol.59,#11359][Chem.Abstr.,1963,vol.59,#11359]
