| Friden 1115 Service ToC (opens in new tab) | Friden 1115 Service Manual, ToC only - apply to DoPECC for full copy |
| Friden 1152 Base Patent (opens in new tab) | Patent for base 1152 machine |
| Friden 1152 Supp Patent (opens in new tab) | Further 1152 patent |
| Friden 1152 Patent (opens in new tab) | Patent for the 1152 register indicator scheme |
| Friden 1155 Program Catalog (opens in new tab) | Friden 1155 program catalog from April 1974 |
| Friden 1155 Service ToC (opens in new tab) | Friden 1155 Service Manual, ToC only - apply to DoPECC for full copy |