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| 9227282 | Machine tool for rotary machining | May 23, 11 | Jan 05, 16 | KOMET GROUP GMBH, MACHINES SERDI S.A., |
| 9114495 | Machining method and machining apparatus of valve holes of cylinder head, and clamp device | Aug 30, 12 | Aug 25, 15 | HONDA MOTOR CO., LTD. |
| 9028178 | Multi-effective material removal tool | Jun 23, 10 | May 12, 15 | Sandvik, Inc. |
| 8585464 | Lapping system and method for lapping a valve face | Nov 17, 09 | Nov 19, 13 | DRESSER-RAND COMPANY |
| 5325634 | Hourglass worm gear | Mar 25, 93 | Jul 05, 94 | Mitsubishi Jukogyo Kabushiki Kaisha |
| 5097631 | Circular edger attachment for vertical glass edger | Oct 16, 90 | Mar 24, 92 | SOMMER & MACA INDUSTRIES, INC. |
| 4930261 | Valve resurfacing apparatus and method for making the same | Sep 06, 89 | Jun 05, 90 | Hein-Werner Corporation |
| 4930948 | Valve seat refitting apparatus | Aug 29, 89 | Jun 05, 90 | Not available |
| 4923343 | Machine tool | Sep 16, 88 | May 08, 90 | Silk Engineering (Derby) Limited |
| 4913601 | Tool-holder spindle for a fine-grinding machine, in particular a machine for grinding the valve seats of heat engines | Nov 17, 88 | Apr 03, 90 | MACHINES SERDI |
| 4862646 | Apparatus and method for production of single element toric lenses of very small proportions | Sep 22, 88 | Sep 05, 89 | North American Philips Corporation |
| 4708546 | Rotating cutting tool holder for bit generation | Dec 24, 86 | Nov 24, 87 | GTE Valeron Corporation |
| 4534096 | Valve seat with trapped O-ring | Oct 17, 84 | Aug 13, 85 | VETCO OFFSHORE INDUSTRIES, INC., A CORP. (CHANGED TO) |
| 4365917 | Work-holding device | Sep 08, 80 | Dec 28, 82 | MACHINES SERDI |
| 4204784 | Tools for reconditioning a valve seat in a tap | Apr 20, 78 | May 27, 80 | Not available |