AZ

Arthur S. Zerfahs

FS Federal Signal: 2 patents #162 of 717Top 25%
GS General Railway Signal: 1 patents #14 of 32Top 45%
QO Qonaar: 1 patents #1 of 10Top 10%
📍 Elk Grove Village, IL: #112 of 434 inventorsTop 30%
🗺 Illinois: #21,447 of 84,256 inventorsTop 30%
Overall (All Time): #1,280,482 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6102387 Automated sheet dispenser 2000-08-15
5225665 Ticket originating and processing device for transit vehicle Norman Diamond, Larry E. Zack 1993-07-06
5089694 Card reader device having automatic means for clamping the card to be read and for automatically ejecting the card at the end of the card reading and writing operations Kirk D. Hoffman, Norman Diamond 1992-02-18
4453667 Bill transport system for a farebox 1984-06-12