Patent model, Gray electro-harmonic telegraph, US Patent #173,618
Patent model, Gray electro-harmonic telegraph, US Patent #173,618
Previous
Next
Usage conditions apply
- Location
- Currently not on view
- Object Name
- Harmonic telegraph
- telegraph transmitter
- Other Terms
- Harmonic telegraph; Telegraphy
- Date made
- 1876
- date made
- 1875
- associated person
- Gray, Elisha
- maker
- Elisha Gray
- Measurements
- overall: 7 in x 12 in x 12 1/2 in; 17.78 cm x 30.48 cm x 31.75 cm
- ID Number
- EM.308867
- catalog number
- 308867
- accession number
- 89797
- patent number
- 173618
- See more items in
- Work and Industry: Electricity
- Data Source
- National Museum of American History
Nominate this object for photography.
Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.
If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.
Note: Comment submission is temporarily unavailable while we make improvements to the site. We apologize for the interruption. If you have a question relating to the museum's collections, please first check our Collections FAQ. If you require a personal response, please use our Contact page.
