WS

William W. Sprau

NM National Machine: 1 patents #35 of 50Top 70%
📍 Tiffin, OH: #68 of 128 inventorsTop 55%
🗺 Ohio: #42,657 of 73,341 inventorsTop 60%
Overall (All Time): #4,000,472 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4606730 Bimetal electrodes for spark plugs or the like and method of making same Nelson I. Kin 1986-08-19