Inventor
JONES DAVID F
US13 patents
⚠️ This page may combine multiple inventors who share the name “JONES DAVID F”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BELL TELEPHONE LABOR INC
3 patentsUS4278844AJul 14, 1981
Communication system selective call screening arrangement
BELL TELEPHONE LABOR INC127 citations95
US4220827ASep 2, 1980
Telephone signaling circuit
BELL TELEPHONE LABOR INC10 citations73
US4216356AAug 5, 1980
Telephone having separate voice and signaling pairs
BELL TELEPHONE LABOR INC3 citations62