| Patents for B23G 9 - Working screws, bolt heads or nuts in conjunction with thread cutting, e.g. slotting screw heads or shanks, removing burrs from screw heads or shanks; Finishing, e.g. polishing, any screw thread (428) |
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| 11/24/1981 | CA1112819A1 Machines for tapping nuts |
| 07/07/1981 | CA1104310A1 Pointing machine |
| 04/07/1981 | CA1098660A1 Thread reforming tool with lockable rotary jaw structure |
| 12/30/1980 | US4241639 Method and apparatus for producing drill screws |
| 12/30/1980 | US4241468 Adjustable shank slot dial |
| 10/21/1980 | US4229126 Machines for tapping nuts |
| 10/23/1979 | CA1064654A2 Tool for forming a recess in the end of a fastener |
| 10/02/1979 | CA1063396A1 Method and apparatus for producing drill screws |
| 04/24/1979 | US4150450 Thread reforming tool with lockable rotary jaw structure |
| 04/17/1979 | US4149287 Method and apparatus for pinch pointing screw blanks |
| 04/03/1979 | CA1051619A2 Making of self-locking internally threaded fasteners |
| 03/27/1979 | CA1051152A1 Oriented type shank slotter |
| 02/13/1979 | US4138754 Apparatus for producing drill screws |
| 10/24/1978 | US4121486 Internal thread cleaner and restorer |
| 09/26/1978 | CA1039006A1 Screw blank receiving and orienting collet |
| 05/23/1978 | US4090544 All metal self-locking screw fastener |
| 02/07/1978 | US4071918 Method of producing drill screws |
| 01/24/1978 | US4069530 Apparatus for chamfering, pointing or the like of workpieces having a head or shoulder |
| 12/27/1977 | US4064585 Thread cutting machine |
| 11/22/1977 | US4058864 Screw shank slotting mechanism |
| 06/21/1977 | US4030153 Attachment for thread cutting apparatus |
| 05/31/1977 | US4025978 Feeding device for multi-headed radial type nut tappers |
| 05/17/1977 | US4023224 Method for producing self-locking fasteners |
| 03/22/1977 | US4012803 Multiheaded radial type nut tapper |
| 01/11/1977 | US4001906 Machine for cutting slots in screw shanks |
| 11/23/1976 | US3992740 Screw blank receiving and orienting collet |
| 05/18/1976 | US3956787 Thread reconditioning tool |
| 03/23/1976 | US3945071 Apparatus for cold forming recesses in the heads of screw fasteners |