HB

Helmut E. Brock

HA Hartmann & Braun Aktiengesellschaft: 1 patents #21 of 45Top 50%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #2,311,129 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5138248 Load independent current feeding circuit Reinhard Vogt, Wolfgang Freitag 1992-08-11
4319404 Chain saw sighting device — 1982-03-16