DW

David Whitell

📍 Calgary, CA: #1,801 of 5,407 inventorsTop 35%
Overall (All Time): #2,221,747 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6173917 Granular material spreader 2001-01-16
5340033 Granular material spreader 1994-08-23