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Inventor: Charles Goodyear
Year: 1839
Made working with rubber easier (sticking when hot and hard when cold)
Removed sulfur and then heated so it would retained its elasticity
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Contents
- Thread-Spinning Mill
- Steamboat
- Cotton Gin
- Telegraph
- Metal Plow
- Mechanical Reaper
- Power Loom
- Sewing Machine
- Vulcanized Rubber
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