| 1981 | Trained Cleaning Experts | |
| 1982 | TIMI 6S Fingerprint Door Access System | |
| 1983 | TIMI FP-5 Fingerprint Time Attendance | |
| 1984 | TIMI 6500A/N Electronic Time Recorder Machine | |
| 1990 | TM Mini Bench Grinder TM-5 | |
| 1996 | Telecrane F24-8 Series Remote Control & F24 Receiver | |
| 1998 | Tempering | |
| 1999 | Through Hardening | |