# Photophone

> device invented jointly by Alexander Graham Bell and his assistant Charles Sumner Tainter in 1880

**Wikidata**: [Q1302202](https://www.wikidata.org/wiki/Q1302202)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Photophone)  
**Source**: https://4ort.xyz/entity/photophone


## References

1. Freebase Data Dumps. 2013