DG

David Ryan Groen

📍 Guelph, CA: #25 of 82 inventorsTop 35%
Overall (2020): #501,735 of 565,922Top 90%
1
Patents 2020

Issued Patents 2020

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10870028 Sprinkler system with a pre-action sprinkler head Randal John Bird 2020-12-22