73704914
Jan 11, 1988
Jan 31, 1989
TELEPHONES; TELEPHONE APPARATUS -NAMELY, PUSH BUTTON TELEPHONE DIALS; TELEPHONE STATION SETS WITH MULTIPLE FUNCTION FEATURES; TELEPHONIC COMBINED SETS -NAMELY, TELEPHONE HAND SET WITH A MICROPHONE; TELEPHONE SWITCHBOARDS; COMPUTER TERMINALS; TELEPHONE TEST AND MEASURING APPARATUS AND STRUCTURAL PARTS THEREOF
Electrical and Scientific Apparatus