WH

Walter J. Hartwig

AL Allis-Chalmers: 2 patents #45 of 232Top 20%
📍 Watertown, WI: #52 of 152 inventorsTop 35%
🗺 Wisconsin: #17,084 of 40,088 inventorsTop 45%
Overall (All Time): #2,360,689 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4373908 Kiln shell nozzle with annular fluid delivery Peter J. Petit 1983-02-15
4367075 Pressurized rotary kiln with thrust containment — 1983-01-04