CB

Calvin J. Butler

📍 Bend, OR: #402 of 663 inventorsTop 65%
🗺 Oregon: #17,068 of 28,073 inventorsTop 65%
Overall (All Time): #4,106,024 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4187957 Method and apparatus for measuring liquid volume to be withdrawn from a container 1980-02-12