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Relations between refraction, density and structure of series of homologous hydrocarbons. I. Empirical formulae for refraction and density at 20 C of n. alkanes and n. alpha‐alkenes
Verfahren zum spanabhebenden Herausarbeiten der Zahnluecken eines Kegel- oder Hyperboloidzahnrades und zur Ausfuehrung dieses Verfahrens dienender Stirnmesserkopf