DS

Donald R. Spaman

RE Raymond Engineering: 2 patents #1 of 11Top 10%
📍 Middletown, CT: #1 of 14 inventorsTop 8%
🗺 Connecticut: #155 of 1,954 inventorsTop 8%
Overall (1989): #28,755 of 140,708Top 25%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4847727 Magnetic memory disc purge erase apparatus — 1989-07-11
4832283 Tape transport cartridge Arthur J. Treff 1989-05-23