Pocket Watch Database
Patent Archive
#637624
Patent Information
Metronome
Frank A. Lee
November 21, 1899
Patent #637624
| Patent Number: | 637624 |
| Description: | Metronome |
| Inventor(s): | Frank A. Lee |
| Assignee: | Imperial Co |
| Patent Date: | Nov 21, 1899 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
