# Ralph Greif

> American engineer

**Wikidata**: [Q109587877](https://www.wikidata.org/wiki/Q109587877)  
**Source**: https://4ort.xyz/entity/ralph-greif


## References

1. [Source](http://wattandedison.com/Greif_65.pdf)
2. Guggenheim Fellows database
3. [Source](https://me.berkeley.edu/people/ralph-greif/)