LOOSENING PREVENTION SCREW / TOUCH
LOCK SCREW
| Filed： |
Nov. 23, 1993 |
| Patent Number： |
5,569,009 |
| Date of Patent： |
Oct. 29, 1996 |
FASTENING SCREW / LOCK ACE SCREW
| Filed： |
Apr. 17, 1995 |
| Patent Number： |
5,580,199 |
| Date of Patent： |
Dec. 3, 1996 |
LOCK NUT AND AFASTENING STRUCTURE MADE
UP OF THE LOCKING NUT AND AMEMBER BEING TIGHTENED
| Filed： |
Apr. 19, 1993 |
| Patent Number： |
5,320,466 |
| Date of Patent： |
Jun. 14, 1994 |
SCREW AND THREAD ROLLING DIE
| Filed： |
Jul. 12, 1991 |
| Patent Number： |
5,358,366 |
| Date of Patent： |
Aug. 13, 1996 |
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