WD

Walter A. Dutton

NO Noranda: 1 patents #54 of 153Top 40%
Overall (All Time): #3,869,147 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4989839 Automatic tuyere puncher Dale Simms, Norman Seymour, Albert Pelletier 1991-02-05