BB

Brian R. Ballantyne

📍 Toronto, CA: #5,171 of 9,482 inventorsTop 55%
Overall (All Time): #3,933,901 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4852320 Mortar collecting device for use in masonry wall construction — 1989-08-01