Pocket Watch Database
Patent Archive
#360550
Patent Information
Metronome
Richard Zeckwer
April 5, 1887
Patent #360550
| Patent Number: | 360550 |
| Description: | Metronome |
| Inventor(s): | Richard Zeckwer |
| Patent Date: | Apr 5, 1887 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
