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Die große Enzyklopädie des mechanischen Rechnens

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Search results for: Holmes, Wilfred


 
  • Patent:GB351973 26.02.1930 Holmes, Wilfred (P) Ferranti (P) Ltd : Improvements in and relating to the measurement of electrical energy
  • Patent:GB353485 27.07.1931 Holmes, Wilfred (P) Ferranti (P) : Improvements in and relating to the measurement of electrical energy

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