EF

Edmund Frank

DU Duo-Fast: 3 patents #7 of 31Top 25%
📍 Chicago, IL: #3,897 of 13,327 inventorsTop 30%
🗺 Illinois: #26,653 of 84,256 inventorsTop 35%
Overall (All Time): #1,682,075 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4463888 Fastener driving tool Bernard W. Geist, Richard H. Doyle, Raymond F. Novak 1984-08-07
4389012 Fastener tool loading assembly Raimonds Grikis, Bernard W. Geist 1983-06-21
4200215 Compression tacker Raymond F. Novak, Richard H. Doyle 1980-04-29