[Newspaper]
Publication: The Fitchburg Sentinel
Fitchburg, MA, United States
vol. VII, no. 2, p. 3, col. 2
David Brooks of Philadelphia has sold to the Western Union Telegraph Company for $230,000 his patent for insulating telegraph wires in cotton.
[Newspaper]
Publication: The Fitchburg Sentinel
Fitchburg, MA, United States
vol. VII, no. 2, p. 3, col. 2
David Brooks of Philadelphia has sold to the Western Union Telegraph Company for $230,000 his patent for insulating telegraph wires in cotton.
| Keywords: | David Brooks |
| Researcher notes: | |
| Supplemental information: | Patents: 199,506; 165,535 |
| Researcher: | Elton Gish |
| Date completed: | June 23, 2005 by: Elton Gish; |