WM

William W. Mann

SP Sperry: 2 patents #196 of 841Top 25%
Overall (All Time): #2,362,604 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4387857 Grinder-mixer controls Terry A. Young, Charles M. Kline, Ernest A. Schoeneberger 1983-06-14
4213571 Dust system for a grinder-mixer Duane R. Deardorff 1980-07-22