RA

Ralph T. Armitage

🗺 Massachusetts: #42,150 of 88,656 inventorsTop 50%
Overall (All Time): #2,346,635 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D282524 Switch plate — 1986-02-11
4319106 Push button switch — 1982-03-09