Pocket Watch Database
Patent Archive
#1812367
Patent Information
Watch Crystal Article Of Mfg For Wrist
John Pief
June 30, 1931
Patent #1812367
| Patent Number: | 1812367 |
| Description: | Watch Crystal Article Of Mfg For Wrist |
| Inventor(s): | John Pief |
| Patent Date: | Jun 30, 1931 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
