Results for "Telegraph"
- SI History Chronology
Telegraph Patent Controversy
- Date: March 16, 1857
Notes on the Operation of Telegraph Lines
- Date: c. 1850
- Creator: Vail, Alfred
- Creator: Vail, Alfred
Alfred Vail's Electromagnetic Telegraph Notes
- Date: 1848
- Creator: Vail, Alfred
- Creator: Vail, Alfred
Drawing of the Electromagnetic Telegraph and Alpha Code
- Date: c. 1844
- Creator: Vail, Alfred
- Creator: Vail, Alfred
- SI History Chronology
Joseph Henry Demonstrates Primitive "Relay" Telegraph
- Date: 1835
Joseph Henry Advises Samuel Morse on Telegraph
- Date: February 24, 1842
- SI History Chronology
Alfred Vail Fails to Credit Joseph Henry for Development of Telegraph
- Date: 1845
Morse Claims Henry's Work in Electromagnetism Did Not Contribute to Invention of Telegraph
- Date: July 19, 1854
Sketch of "Telegraph" Joseph Henry Showed his Classes at the Albany Academy
- Date: 1857
- Creator: Henry, Joseph 1797-1878
- Creator: Henry, Joseph 1797-1878
Joseph Henry Testifies for Morse v. O'Reilly Telegraph Patent Case
- Date: September 7, 1849
Joseph Henry's Letter to Samuel F. B. Morse (February 24, 1842)
- Date: February 24, 1842
- Creator: Henry, Joseph 1797-1878,Joseph Henry Papers Project
- Creator: Henry, Joseph 1797-1878,Joseph Henry Papers Project
Samuel F. B. Morse's Letter to Joseph Henry (October 17, 1846)
- Date: October 17, 1846
- Creator: Morse, Samuel Finley Breese 1791-1872,Joseph Henry Papers Project
- Creator: Morse, Samuel Finley Breese 1791-1872,Joseph Henry Papers Project
