RS

Ronald Sprokkereef

KN Koninklijke Kpn N.V.: 1 patents #116 of 298Top 40%
📍 Heemstede, NL: #33 of 84 inventorsTop 40%
Overall (All Time): #3,365,251 of 4,157,543Top 85%
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Patent #TitleCo-InventorsDate
7424104 Call detail record for internet call waiting — 2008-09-09