- 7541
- 1994-06-18
technology: اختراعات
- 7271
- 1993-09-14
- 7245
- 1993-08-18
- 7218
- 1993-07-22
- 7211
- 1993-07-15
- 7198
- 1993-07-02
- 7151
- 1993-05-14
- 7022
- 1992-12-20
- 6969
- 1992-10-19
- 6711
- 1991-12-18
- 6532
- 1990-07-15
- 7885
- 1990-06-06
- 6318
- 1989-12-10
- 6310
- 1989-12-02
- 6283
- 1989-11-05
- 6060
- 1989-03-25
- 6039
- 1989-03-04
- 5896
- 1988-10-11
- 5526
- 1987-10-01
- 5519
- 1987-09-24