| 3123556-01 | 09150 | AMPEX DATA SYSTEMS CORP COMPUTER PRODUCTS DIV |
| 3123556-01 | 0PN68 | AMPEX DATA SYSTEMS CORPORATION |
| 3123556-02 | 09150 | AMPEX DATA SYSTEMS CORP COMPUTER PRODUCTS DIV |
| 3123556-02 | 0PN68 | AMPEX DATA SYSTEMS CORPORATION |
| 3123556-03 | 09150 | AMPEX DATA SYSTEMS CORP COMPUTER PRODUCTS DIV |
| 3123556-03 | 0PN68 | AMPEX DATA SYSTEMS CORPORATION |
| 3123556-03 | 92739 | AMPEX SYSTEMS CORP |