Pocket Watch Database
Patent Archive
#619857
Patent Information
Metronome
Robert A. Becket
William A. Wood
February 21, 1899
Patent #619857
| Patent Number: | 619857 |
| Description: | Metronome |
| Inventor(s): |
Robert A. Becket William A. Wood |
| Patent Date: | Feb 21, 1899 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
