John Calhoun

📍 Groves, TX: #2 of 4 inventorsTop 50%

🗺 Texas: #1,330 of 5,527 inventorsTop 25%

Overall (1994): #115,405 of 165,921Top 70%

Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5329797	Tube-resizing tool	—	1994-07-19