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John T. Shackelford

📍 Tulsa, OK: #25 of 127 inventorsTop 20%
🗺 Oklahoma: #177 of 727 inventorsTop 25%
Overall (1994): #111,599 of 165,921Top 70%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5299599 Valving arrangement for a negative pressure ventilator Robert B. Farmer 1994-04-05