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Patent:GB325357


Patent:GB 325357
Title:Improvements in or relating to combined calculating and writing instruments
Date:20.02.1930
Place:
Country:Great Britain
Person:
Company:Ruxton Multi Vider Corp
Internal Links:Multi-Vider
Keywords:
Link to the patent office:
(without guarantee)
 GB325357


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Aus der Patentschrift GB325357