# Friedrich Freytag

> German engineer

**Wikidata**: [Q21415858](https://www.wikidata.org/wiki/Q21415858)  
**Source**: https://4ort.xyz/entity/friedrich-freytag


## References

1. Catalog of the German National Library
2. [Source](https://saebi.isgv.de/biografie/Friedrich_Freytag_(1853-1920))
3. Czech National Authority Database
4. NUKAT
5. [Source](http://saebi.isgv.de/gnd/140391312)