CK

Charles T. Keys

BL Bell Telephone Laboratories: 1 patents #567 of 1,445Top 40%
📍 Pataskala, OH: #61 of 112 inventorsTop 55%
🗺 Ohio: #42,657 of 73,341 inventorsTop 60%
Overall (All Time): #4,104,055 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4182934 Method and apparatus for detecting irregular telephone calls Renald A. Ratti 1980-01-08