VR

Victor P. Rigby

📍 Bolton, GB: #52 of 117 inventorsTop 45%
Overall (All Time): #4,087,112 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4260297 Machines for positioning roof supports in a tunnel John William Houston 1981-04-07