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Patent:US6200140


Patent:US 6200140
Title:Double-beam math balance
Date:13.03.2001
Place:PO Box 1034, Elora, ON, CA
Country:USA
Person:Steane, Douglas Allan (P)
Company:
Internal Links:Lehrmittel, Rechenwaage
Keywords:
Link to the patent office:
(without guarantee)
 US6200140 (espacenet),  US6200140 (uspto)


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Aus der Patentschrift US6200140