MJ

Mack W. Gwinn, Jr.

📍 Levant, ME: #1 of 16 inventorsTop 7%
🗺 Maine: #453 of 4,281 inventorsTop 15%
Overall (All Time): #586,997 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
6829974 Firearm buffer system 2004-12-14
6606812 Firearm barrel change apparatus 2003-08-19
D349147 Firearm barrel muzzle attachment 1994-07-26
D297661 Firearm magazine 1988-09-13
4689907 Small arm magazine 1987-09-01
4392413 Muzzle attachment for a firearm barrel 1983-07-12
D268861 Firearm muzzle brake or similar article 1983-05-03
D268511 Firearm magazine 1983-04-05
D268439 Firearm magazine 1983-03-29