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Rechnerlexikon

Die große Enzyklopädie des mechanischen Rechnens

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Brevetti  Gran Bretagna  1975

 
  • Patent:GB1384087 19.02.1975 Platemakers Educational und Research Institute : Apparatus for calculating halftone screen exposures
  • Patent:GB1386730 12.03.1975 St, Josephs Hospital Medical Ce (P) : Slide Rule Guide To Intravenous Therapy
  • Patent:GB1393502 07.05.1975 Ets. Fresa : Improvements in or relating to calculators
  • Patent:GB1402412 06.08.1975 Magyar Asvanyolaj Es Foeldgaz : Slide Rule For Use Inter Alia In The Interpretation Of Gas- Chromatograms
  • Patent:GB1410154 15.10.1975 Dr. Rotta GmbH : Data presenter for determining deviations from normal ion values in serum

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