RB

Ralph E. Zum Bahlen

SL Stenograph, L.L.C.: 3 patents #2 of 14Top 15%
Overall (All Time): #1,683,934 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4421427 Shorthand machine having electric platen advancement Richard Michals, Frank Mozer 1983-12-20
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