Pocket Watch Database
Patent Archive
#979108
Patent Information
Recorder Work Man
Frank J. Tran
Frank Cais
December 20, 1910
Patent #979108
| Patent Number: | 979108 |
| Description: | Recorder Work Man |
| Inventor(s): |
Frank J. Tran Frank Cais |
| Patent Date: | Dec 20, 1910 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
