Pocket Watch Database
Patent Archive
#1566873
Patent Information
Time Announce Phonograph
Felix Isman
December 22, 1925
Patent #1566873
| Patent Number: | 1566873 |
| Description: | Time Announce Phonograph |
| Inventor(s): | Felix Isman |
| Assignee: | Duffy Edwin N |
| Patent Date: | Dec 22, 1925 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
