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Die große Enzyklopädie des mechanischen Rechnens

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Patent:GB381395


Patent:GB 381395
Title:A slide rule for electrical engineers
Date:06.10.1932
Place:
Country:Great Britain
Person:
Company:Faber Castell (P)
Internal Links:Rechenschieber
Keywords:
Link to the patent office:
(without guarantee)
 GB381395


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Aus der Patentschrift GB381395