PDQ by JACOBSEN, JEFFREY (Track this)
Intl: (042) Computer, scientific & legal US: 101 Filing date: 03-Nov-1967 Serial number: 72284064
PDQ by JACOBSEN, JEFFREY (Track this)
Intl: (042) Computer, scientific & legal US: 101 Filing date: 04-Oct-1965 Serial number: 72229279