| Number | Name | Date | Kind |
|---|---|---|---|
| D210534 | Dean et al. | Mar 1968 | |
| D261138 | Davis, Jr. | Oct 1981 |
| Entry |
|---|
| Computer Design, 1-1981, p. 203, Data General Tape Drive. |
| Computer Design, 3-1981, p. 154, STC Tape Drive #1952 NRZI/PE. |
| Consolidated Electrodynamics Corp. DR-2700 Tape Drive Brochure, 1963, front cover, Tape Drive. |