Patent
Suchergebnisse für: Ferranti
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Patent:GB351973
26.02.1930 Holmes, Wilfred (P) Ferranti (P) Ltd : Improvements in and relating to the measurement of electrical energy
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Patent:GB353485
27.07.1931 Holmes, Wilfred (P) Ferranti (P) : Improvements in and relating to the measurement of electrical energy
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Patent:GB570476
16.12.1943 Jackson, Horace (P) Ferranti (P) : Improvements relating to integrating electricity meters
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Patent:GB588636
01.02.1945 Jackson, Horace (P) Ferranti (P) : mprovements in change speed gearing applicable to electricity meters