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Johannes Fredericus Spronk

📍 Lelystad, NL: #2 of 11 inventorsTop 20%
Overall (1997): #125,909 of 185,788Top 70%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5660323 Box with sealing tab 1997-08-26