Inventor

FENTON FRANCIS M

3 patents

⚠️ This page may combine multiple inventors who share the name “FENTON FRANCIS M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

BELL TELEPHONE LABOR INC

2 patents

US4150259AApr 17, 1979

Communication system conferencing arrangement

BELL TELEPHONE LABOR INC41 citations87

US4150257AApr 17, 1979

Communication system call coverage arrangements

BELL TELEPHONE LABOR INC30 citations79

AT & T INFORMATION SYSTEMS INC

1 patent

US4560837ADec 24, 1985

Call transfer method and circuitry

AT & T INFORMATION SYSTEMS INC13 citations69