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chap.6 s.s.vocab
page 1 and page 4 vocab
Term | Definition |
---|---|
petroleum | oily,flammable liquid used to produce oil |
patent | A document declaring an invention yours |
business cycle | Good and bad times in the American industry pace |
Bessemer steel process | A way of making steel using less coal |
generator | Is a machine that produces electric current |
Thomas Edison | He is the inventor of the lightbulb |
Alexander graham belle | The inventor of the telephone |
centennial exhibition | An event celebrating Americas 100th year |
Christopher sholes | Invented the type writer |
Elias Howe | made the first sewing machine |
Isaac singer | Invented the sewing machine |
Jan Matzeliger | patent for the shoe lasting machine |