Darrin S. Johnson

City:

Springfield, Oregon

Country:

United States

Published Applications:

Last publication date:

2017-05-30

Recent patent applications by Johnson Darrin S.

Darrin S. Johnson from Springfield, US has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2017-05-30

US15183718

Mechanical engineering

Control of ejected firearm shells

InventorID:

7179080 ⎘