Pocket Watch Database
Patent Archive
#477448
Patent Information
Recorder Work Man
Joao Lopes Ferreira Pinto
June 21, 1892
Patent #477448
| Patent Number: | 477448 |
| Description: | Recorder Work Man |
| Inventor(s): | Joao Lopes Ferreira Pinto |
| Patent Date: | Jun 21, 1892 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
