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Patent:GB342355


Patent:GB 342355
Title:Improvements in Planimeters
Date:02.02.1931
Place:
Country:Great Britain
Person:Dall, Horace Edward (P) & George Kent Ltd
Company:
Internal Links:Planimeter
Keywords:
Link to the patent office:
(without guarantee)
 GB342355


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Aus der Patentschrift GB342355