Mark Identification

DESIGNERS' CHOICE

Serial Number

73713672

Filing Date

Feb 26, 1988

Registration Date

Dec 6, 1988

Trademark by

QUADTREE SOFTWARE CORPORATION

Classification Information

COMPUTER PROGRAMS THAT SIMULATE INTEGRATED CIRCUITS FOR DESIGN OF COMPUTER BOARDS AND SOFTWARE MODELS

Electrical and Scientific Apparatus

SOFTWARE DESIGN AND COMPUTER PROGRAMMING SERVICES

Computer and Scientific