HW

Hannes Willisch

VR Von Roll: 1 patents #2 of 5Top 40%
📍 Pulheim, DE: #3 of 12 inventorsTop 25%
Overall (1982): #60,347 of 81,411Top 75%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4317671 Process of composting refuse or refuse/sewage sludge mixtures by thermal retting 1982-03-02