Patent Archive
#2417437
Patent Information
Method Apparatus Produce Sapphire Hollow Art
Cannon M C
May 31, 1949
Patent #2417437
| Manufacturer: | Elgin |
| Patent Number: | 2417437 |
| Category: | |
| Description: | Method Apparatus Produce Sapphire Hollow Art |
| Inventor(s): | Cannon M C |
| Assignee: | Elgin Natl Watch Co |
| Patent Date: | May 31, 1949 |
| Registration Type: | Patent |
| External Research: | https://www.google.com/patents... |
| Patent Document: |
