3 ms·
http://www.google.com/patents/US5449683 http://www.google.com/patents/US5449683
by sumitviii 12y ago
http://www.google.com/patents/US5449683 http://www.google.com/patents/US5449683
- Turing_Machine 12y agoThe filing date on that is Jul 16, 1993, so it expired several years ago.