# Ed Tietjens

> Dutch inventor and writer

**Wikidata**: [Q52008316](https://www.wikidata.org/wiki/Q52008316)  
**Source**: https://4ort.xyz/entity/ed-tietjens


## References

1. [Source](https://www.mensenlinq.nl/mensenlinq/overlijdened/site/advertentie/detail?pid=4558152)
2. datos.bne.es
3. [Source](https://patents.google.com/?inventor=Eduard+Willem+Tietjens)
4. [Source](https://patentscope.wipo.int/search/en/detail.jsf?docId=AU194076520&recNum=220&docAn=41847/78&queryString=trees&maxRec=637)