About 4 Trademarks found that are owned by Digital Telephone Systems Inc.

ELECTRONIC UNITS WHICH WILL MEASURE THE NUMBER OF TELEPHONE CALLS ON A TELEPHONE CIRCUIT OR SWITCH, AND THE LENGTH OF THE TIME THE CALL LASTS

THE DESIGN PORTION OF THE MARK CONSISTS OF A STYLIZED BLOCK LETTER "D."

THE DESIGN PORTION OF THE MARK CONSISTS OF A STYLIZED BLOCK LETTER "D," THE RIGHT SIDE OF WHICH HAS BEEN EXTENDED TO A POINT.

APPLICANT DISCLAIMS EACH OF THE WORDS "DIGITAL," "TELEPHONE," "SYSTEMS," AND "INC." WHEN CONSIDERED BY THEMSELVES, SEPARATE AND APART FROM THE MARK AS A WHOLE, WITHOUT WAIVING ANY OF APPLICANT'S COMMON LAW RIGHTS THEREIN.

a Private Branch Exchange Telephone System, Comprising- an Attendant Console and an Equipment Cabinet Containing Circuitry

Private Branch Telephone Exchange