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Patent Archive
#1869175
Patent Information
Clock Radio Signal Regulate
Clarence A. Sprague
July 26, 1932
Patent #1869175
| Patent Number: | 1869175 |
| Description: | Clock Radio Signal Regulate |
| Inventor(s): | Clarence A. Sprague |
| Assignee: | Bell Telephone Laboratories In |
| Patent Date: | Jul 26, 1932 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
