Pocket Watch Database
Patent Archive
#1954781
Patent Information
Clock System Synch Series Type
Ralph Charles Allen
April 17, 1934
Patent #1954781
Patent Number: | 1954781 |
Description: | Clock System Synch Series Type |
Inventor(s): | Ralph Charles Allen |
Assignee: | Ibm Corp |
Patent Date: | Apr 17, 1934 |
Registration Type: | Patent |
External Research: | https://www.google.c… |
Patent Document: |