Margaret R. Massey

📍 Oklahoma City, OK: #470 of 1,463 inventorsTop 35%

🗺 Oklahoma: #4,502 of 12,736 inventorsTop 40%

Overall (All Time): #2,288,831 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
D361325	Wrist support for a calculator	—	1995-08-15
D328598	Wrist support for a computer keyboard	—	1992-08-11