Inventor

GREASON WILLIAM D

CA2 patents

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

NORTHERN TELECOM LTD

1 patent

US4385209AMay 24, 1983

Adjustment of operating characteristics of a telephone transmitter including an electret transducer

NORTHERN TELECOM LTD96 citations93

BALL WILLIS J

1 patent

US4091382AMay 23, 1978

Display system

BALL WILLIS J13 citations62