Westinghouse payed attention to the problems of railroad signaling. By purchasing patents to combine with his own inventions, he was able to develop a complete electrical and compressed-air signal system. In 1883 he began to apply his special knowledge of air brakes to the problem of safely piping natural gas, and within two years he obtained 38 patents for piping equipment.
The U.S constitution didn’t protect their rights.
Answer:
county commissioner
Explanation:
These original positions included the sheriff, the tax commissioner, the clerk of the superior court, and judge of the probate court. In 1868, the position of county commissioner was added to the elected officials of a county.
Answer:
The Interesting Narrative of the Life of Olaudah Equiano, Or Gustavus Vassa, The African