RC

Robert L. Canfield

📍 Colorado Springs, CO: #1,705 of 2,971 inventorsTop 60%
🗺 Colorado: #24,093 of 40,980 inventorsTop 60%
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1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4335522 Up, down or horizontal plumb bob — 1982-06-22