IP Library › Granted Patent US 4,915,519
Granted Patent Utility
US 4,915,519 · App. 07/115,227

Direct negative from resistive ribbon

Inventors: Ali Afzali-Ardakani, Mukesh Desai, Keith S. Pennington
Patented Case View Patent ↗
Granted: Apr 10, 1990 Filed: Oct 30, 1987
Inventors
Ali Afzali-Ardakani
Mukesh Desai
Keith S. Pennington
Assignee (at issue)
International Business Machines Corporation

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Quick Facts
Patent No.
US 4,915,519
App. No.
07/115,227
Filed
1987-10-30
Granted
1990-04-10
Kind
A