WL

Warren L. Langstraat

3M: 2 patents #5,326 of 11,543Top 50%
Overall (All Time): #2,357,116 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4484932 Sanding wheel John J. Mailand, Daniel D. Smith 1984-11-27
4437270 Abrading tool 1984-03-20