Pocket Watch Database
Patent Archive
#1918041
Patent Information
Rhythm Maintain Device Artifical Respiration
Fred Knapke
July 11, 1933
Patent #1918041
| Patent Number: | 1918041 |
| Description: | Rhythm Maintain Device Artifical Respiration |
| Inventor(s): | Fred Knapke |
| Patent Date: | Jul 11, 1933 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
