Patents/Inventors

Peter S. Leonard

Newton AyecliffeGB1 patent

2 Patents

US122456482025
Maintenance-free Respirator That Has Concave Portions on Opposing Sides of Mask Top Section
3M Innovative Properties Company
0 cites
US118776042024
Maintenance-free Respirator That Has Concave Portions on Opposing Sides of Mask Top Section
3M Innovative Properties Company
0 cites