WH

Walter Hirschmann

PM Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh: 1 patents #5 of 26Top 20%
Overall (1989): #45,830 of 140,708Top 35%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4862041 Dimmable electronic transformer circuit — 1989-08-29