The present claim relates to the ornamental design of a gemstone sorting gauge. The gemstone sorting gauge is used to measure and sort gemstones.
The present claim relates to the ornamental design of a gemstone sorting gauge. The gemstone sorting gauge is used to measure and sort gemstones.
| Number | Name | Date | Kind |
|---|---|---|---|
| 20110310246 | Hornabrook et al. | Dec 2011 | A1 |