HP

Hubert J. Ploumen

HB Hollandse Signaalapparaten B.V.: 2 patents #17 of 87Top 20%
📍 Borne, NL: #17 of 81 inventorsTop 25%
Overall (All Time): #2,362,833 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4406977 Power supply circuit 1983-09-27
4390896 Power supply circuit 1983-06-28