OILHOLE
| Date | Clue |
|---|---|
| 2014-03-09 | Lubrication point |
| 2012-09-21 | Aperture in some drills |
| 2002-09-15 | Machine aperture |
| 1997-12-06 | Lubrication spot |
| 1996-12-21 | Aperture for a lubricant |
| Date | Clue |
|---|---|
| 2014-03-09 | Lubrication point |
| 2012-09-21 | Aperture in some drills |
| 2002-09-15 | Machine aperture |
| 1997-12-06 | Lubrication spot |
| 1996-12-21 | Aperture for a lubricant |