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Patent:GB1014680


Patent:GB 1014680
Title:Improvements in or relating to apparatus for calculating the weighted average of twoor more numbers
Date:31.12.1965
Place:
Country:Great Britain
Person:Johnson Ivan Boris David
Company:Smith and Sons Ltd S
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Keywords:
Link to the patent office:
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 GB1014680


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Aus der Patentschrift GB1014680