Patent:CA285811

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Patent:CA 285811
Title:Calculating machine
Date:25.12.1928
Place:
Country:Canada
Person:Friden, Carl Mauritz Fredrick (P)
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 CA285811 (http://patents.ic.gc.ca/cipo/cpd/en/patent/285811/summary.html)


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