Pocket Watch Database
Patent Archive
#2736165
Patent Information
Timepiece Crystal
Ervin Piquerez
February 28, 1956
Patent #2736165
| Patent Number: | 2736165 |
| Description: | Timepiece Crystal |
| Inventor(s): | Ervin Piquerez |
| Patent Date: | Feb 28, 1956 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
