73278315
Sep 18, 1980
Jul 26, 1983
Telephone Equipment-Namely, Key Telephone Station Sets, Key Service Units, Direct Station Selection Consoles, Power Supplies, and Parts Thereof, and Key Telephone Systems Consisting of Some or All of the Foregoing Items of Telephone Equipment; and Private Automatic Branch Exchanges, Switching Units, Power Supplies, Consoles, Telephone Sets, and Parts Thereof
Electrical and Scientific Apparatus