- WS57C291C-55TMB
- E2v Technologies (uk), Ltd.
- 2K X 8 UVPROM, 55 ns, CDIP24
- 57C291C-55TMB
- Stmicroelectronics
- EPROM UV 16K-Bit 2K x 8 55ns 24-Pin CDIP
- WS57C291C-55TMB
- Stmicroelectronics
- MILITARY HIGH SPEED 2K x 8 CMOS PROM/RPROM
- WS57C291C-55TMB
- Wsi Corporation
- HIGH SPEED 2K x 8 CMOS PROM/RPROM