# Lloyd Groff Copeman

> American inventor (1881-1956)

**Wikidata**: [Q121490](https://www.wikidata.org/wiki/Q121490)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Lloyd_Groff_Copeman)  
**Source**: https://4ort.xyz/entity/lloyd-groff-copeman


## References

1. Find a Grave