| Meeting code | PCT/SEM/052 |
| Date and venue | September 12, 1989 (Arlington, United States of America) Onsite |
| Topic(s) | PCT Seminars |
| Meeting code | PCT/SEM/052 |
| Date and venue | September 12, 1989 (Arlington, United States of America) Onsite |
| Topic(s) | PCT Seminars |