WH

Walter R. Heiker

SG Sigri Elektrographit Gmbh: 1 patents #13 of 30Top 45%
📍 Wertheim, DE: #64 of 116 inventorsTop 60%
Overall (All Time): #4,044,073 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4482314 Method for heating carbon blanks Hans-Joachim Giese, Wilfried Krohe 1984-11-13