Pocket Watch Database
Patent Archive
#337157
Patent Information
Bell Call
William C. Homan
March 2, 1886
Patent #337157
| Patent Number: | 337157 |
| Description: | Bell Call |
| Inventor(s): | William C. Homan |
| Patent Date: | Mar 2, 1886 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
