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Patent:US6079983


Patent:US 6079983
Title:Educational instrument for numbers
Date:27.06.2000
Place:
Country:USA
Person:Kane, Jr., James T. (94 Adams St. #108, Waltham, MA 02453)
Company:
Internal Links:Lehrmittel
Keywords:
Link to the patent office:
(without guarantee)
 US6079983 (espacenet),  US6079983 (uspto)


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