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Patent:US4028529


Patent:US 4028529
Title:Currency exchange calculator
Date:07.06.1977
Place:477 Colonial Road, Ridgewood, NJ
Country:USA
Person:Van De Weghe, George (P)
Company:
Internal Links:Währungsrechner
Keywords:
Link to the patent office:
(without guarantee)
 US4028529 (espacenet),  US4028529 (uspto)