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[1]CurrentPatentAssignee:I.G.FARBENINDUSTRIEAG(historic)-CH167652,1933,ATomitaetal.[YakugakuZasshi/JournalofthePharmaceuticalSocietyofJapan,1949,vol.69,p.151,153][Chem.Abstr.,1950,p.1445]
[2]CurrentPatentAssignee:I.G.FARBENINDUSTRIEAG(historic)-CH167652,1933,ATomitaetal.[YakugakuZasshi/JournalofthePharmaceuticalSocietyofJapan,1949,vol.69,p.151,153][Chem.Abstr.,1950,p.1445]
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[1]Avisonetal.[JournaloftheChemicalSociety,1949,p.952,954]
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[1]CurrentPatentAssignee:BRICKL-BE853558,1977,A[Chem.Abstr.,1978,vol.88,#37429][Chem.Abstr.,1978,vol.88,#37429]