RB

Ralph E. Zum Bahlen

SL Stenograph, L.L.C.: 2 patents #1 of 5Top 20%
📍 Chicago, IL: #20 of 289 inventorsTop 7%
🗺 Illinois: #186 of 2,749 inventorsTop 7%
Overall (1982): #8,941 of 81,411Top 15%
2
Patents 1982

Issued Patents 1982

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4363558 Shorthand machine having electric platen advancement Richard Michals, Frank Mozer 1982-12-14
4323316 Shorthand machine paper gauge Paul J. Fowler 1982-04-06