HG

Hubertus Augustinus Leonardus Maria De Graaf

KN Koninklijke Ptt Nederland N.V.: 1 patents #2 of 27Top 8%
Overall (1997): #182,470 of 185,788Top 100%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5639183 Installing cable-ducts Willem Griffioen, Cornelis Casparus Van Bijsterveld 1997-06-17