BE

by Evelyn M. H. MacDonald, exectrix

Overall (All Time): #3,973,505 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4662571 Mineral impact breaking apparatus George J. MacDonald, Bryan A. Bartley 1987-05-05