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Patent:GB717432


Patent:GB 717432
Title:Calculating machine for the four arithmetical operations (addition, subtraction, multiplication and division)
Date:27.10.1954
Place:
Country:Great Britain
Person:Altenburger, Ernst (P), Hirt, Otto (P), Westinger, Karl (P)
Company:
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Keywords:
Link to the patent office:
(without guarantee)
 GB717432


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Aus der Patentschrift GB717432