- 7977
- 1995-09-07
technology: الألياف البصرية
- 7581
- 1994-07-28
- 7061
- 1993-02-03
- 7038
- 1993-01-09
- 7037
- 1993-01-07
- 6887
- 1992-06-15
- 6625
- 1991-09-09
- 6459
- 1990-05-02
- 6412
- 1990-03-15
- 6259
- 1989-10-12
- 6165
- 1989-07-08
- 5398
- 1987-05-23
- 5277
- 1987-01-20
- 4900
- 1986-01-02
- 4024
- 1983-07-27
- 3198
- 1981-04-08
- 3197
- 1981-04-07
- 2856
- 1980-04-28