Catalogued
Sphygmogram
- Made by
- Étienne-Jules Marey
- Year
- 1859
- Field
- Medicine
- Kind
- Data display
- Room
- Change over time — Placed by reading its description, not yet studied
121 other forms share this skeleton
Source
Marey 1863, Physiologie médicale de la circulation du sang
Attribution less certain: contested, or no single inventor recorded