Pocket Watch Database
Patent Archive
#1058659
Patent Information
Metronome
Henri Coullery
April 8, 1913
Patent #1058659
| Patent Number: | 1058659 |
| Description: | Metronome |
| Inventor(s): | Henri Coullery |
| Patent Date: | Apr 8, 1913 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
