The real McCoy the life of an African-American inventor

"The life of a pioneering African-American inventor from the mid-1800s recounts his successes with such products as rubber heels, lawn sprinklers, and locomotive oil cups."
"A biography of the Canadian-born black American who studied engineering in Scotland and patented over fifty inventions despite the obstacles he faced because of his race. Grade 5.7; Points 0.5."@en
"A biography of the Canadian-born black American who studied engineering in Scotland and patented over fifty inventions."@en
"A biography of the Canadian-born black American who studied engineering in Scotland and patented over fifty inventions despite the obstacles he faced because of his race."
"A biography of the Canadian-born black American who studied engineering in Scotland and patented over fifty inventions despite the obstacles he faced because of his race."@en
"The story of Elijah McCoy's life presented here reflects a composite of existing information we have been able to authenticate."@en
"Biography of the Canadian-born black American who studied engineering in Scotland & patented over 50 inventions."@en