Inventor

MARTIN EARL O

3 patents

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

BELL TELEPHONE LABOR INC

2 patents

US4419542ADec 6, 1983

Battery feed circuit

BELL TELEPHONE LABOR INC27 citations79

US4330744AMay 18, 1982

Precision converter/isolation circuit

BELL TELEPHONE LABOR INC17 citations71

AT & T BELL LAB

1 patent

US4473719ASep 25, 1984

Switchhook status detector

AT & T BELL LAB21 citations79