# John Dopyera

> Slovak inventor (1893–1988)

**Wikidata**: [Q3495504](https://www.wikidata.org/wiki/Q3495504)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/John_Dopyera)  
**Source**: https://4ort.xyz/entity/john-dopyera


## References

1. Virtual International Authority File
2. Freebase Data Dumps. 2013