'Encouraged by Firestone, Edison patented a way to get this material out of herbs & shrubs, but it wasn't practical'
rubber
EDISON'S PATENTS: Encouraged by Firestone, Edison patented a way to get this material out of herbs & shrubs, but it wasnt practical
Encouraged by Firestone, Edison patented a way to get this material out of herbs & shrubs, but it wasn't practical
Encouraged by Firestone, Edison patented a way to get this material out of herbs & shrubs, but it wasn't practical
EDISON'S PATENTS
rubber
EDISON'S PATENTS