Pocket Watch Database
Patent Archive
#1113538
Patent Information
Timer Telephone
Clark L. Braucher
Edward R. Johnson
October 13, 1914
Patent #1113538
Patent Number: | 1113538 |
Description: | Timer Telephone |
Inventor(s): |
Clark L. Braucher Edward R. Johnson |
Patent Date: | Oct 13, 1914 |
Registration Type: | Patent |
External Research: | https://www.google.c… |
Patent Document: |