DR

David L. Robertson

📍 San Antonio, TX: #1,537 of 5,017 inventorsTop 35%
🗺 Texas: #40,946 of 125,132 inventorsTop 35%
Overall (All Time): #1,599,673 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
D507034 Fish hook design 2005-07-05
5569124 Arm, hand and wrist exercising device Arthur D. Raynie 1996-10-29
5380259 Arm, hand and wrist exercising device Arthur D. Raynie 1995-01-10