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Die große Enzyklopädie des mechanischen Rechnens

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Patent:US2422186


Patent:US 2422186
Title:Register selecting mechanism
Date:17.06.1947
Place:Brussels
Country:USA
Person:Demeulenaere, Marcel (P)
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2422186 (espacenet),  US2422186 (uspto)


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