# string galvanometer

> instrument that provided the first practical electrocardiogram

**Wikidata**: [Q2126472](https://www.wikidata.org/wiki/Q2126472)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/String_galvanometer)  
**Source**: https://4ort.xyz/entity/string-galvanometer


## References

1. Freebase Data Dumps. 2013