JR

Joseph S. Roberts

📍 Brockville, CA: #43 of 94 inventorsTop 50%
Overall (All Time): #2,301,443 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5205541 Arrow head extractor George Spector 1993-04-27
4368754 Washerless valve structure particularly for faucets 1983-01-18