. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . 2 Sheets—Sheet 2. T. A. EDISON. MAGNETO ELECTRIC MACHINE. No. 264,643. Patented Sept. 19, 1882. v•4/.

---

Size: 1714px × 1458px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., boo, bookcentury1800, booksubjectinventions, booksubjecttelephone