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Georg Sperber

Bad Lippspringe, DE: #2 of 3 inventorsTop 70%
Overall (1997): #148,580 of 185,788Top 80%
1 Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5697595 Flip chart — 1997-12-16

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