MJ

Marcel St. John

📍 Alma, CA: #3 of 6 inventorsTop 50%
Overall (2021): #341,268 of 548,734Top 65%
1
Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11161221 Device for maintaining a plurality of doors in an upright position, and method 2021-11-02