Douglas L. King

📍 Oklahoma City, OK: #16 of 99 inventorsTop 20%

🗺 Oklahoma: #195 of 823 inventorsTop 25%

Overall (2003): #234,696 of 273,478Top 90%

Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6664457	Percussion instrument aid	—	2003-12-16