# Henri R. Heyl

> American inventor (1842–1919)

**Wikidata**: [Q3131867](https://www.wikidata.org/wiki/Q3131867)  
**Source**: https://4ort.xyz/entity/henri-r-heyl


## References

1. [Source](https://billypenn.com/2023/11/19/inventor-henry-heyl-and-phillys-role-in-early-moving-picture-technology/)
2. [Source](https://books.google.fr/books?id=aWGHDwAAQBAJ&pg=RA1-PA81&lpg=RA1-PA81&dq=phasmatrope+Heyl&source=bl&ots=hcYFTlk3PX&sig=ACfU3U1ImGtEvOrSyGXz1YfhdINrE3ta_Q&hl=fr&sa=X&ved=2ahUKEwivk_jfxcHiAhXsAmMBHWp0ANMQ6AEwC3oECAgQAQ#v=onepage&q=phasmatrope%20Heyl&f=false)