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| K021264 | TRZ-CG POWER POSITIONING SYSTEM WITH CENTER-OF-GRAVITY SHIFTING POWER TILT, RECLINE, AND POWER ELEVA | July 30, 2002 |
| K994241 | TRX-CG POWER TILT AND RECLINE SYSTEM | January 13, 2000 |
| K990544 | TRX-CG POWER TILT AND RECLINE SYSTEM | April 8, 1999 |
| K981837 | TRX-CG CENTER-OF-GRAVITY SHIFTING POWER TILT AND RECLINE SYSTEMS | July 9, 1998 |
| K970521 | TRX POWER TILT AND RECLINE SYSTEM | March 31, 1997 |