JG

Johannes Didericus De Graaf

Shell Oil Compny: 1 patents #87 of 282Top 35%
📍 The Hague, NL: #7 of 28 inventorsTop 25%
Overall (2004): #192,031 of 270,089Top 75%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6766772 Apparatus for heating steam Franciscus Gerardus Van Dongen 2004-07-27