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Patent:GB393828


Patent:GB 393828
Title:Improvements in range and direction calculating apparatus for artillery
Date:15.06.1933
Place:
Country:Great Britain
Person:Petschenig, Karl (P)
Company:Optische Anstalt C. P. Goerz (P)
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Link to the patent office:
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 GB393828


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Aus der Patentschrift GB393828