Duplitron Trademarks

DUPLITRONICS
HIGH-SPEED DIGITAL-AUDIO MASTER CASSETTE DUPLICATOR
Cancelled  ·  September 1, 1989  ·  73822843  · 
DUPLITRONICS
AUDIO CASSETTE DUPLICATION SERVICES
Cancelled  ·  May 31, 1988  ·  73731406  ·