Richard Spikes was an African-American inventor created with  inventing the turn signal and the beer keg tap. Not a lot is known  about his personal life except that he was â¦ declared legally blind  in 1962, the same year he passed away. Answered.
There are 56 calories in 1 thin slice of Roast Beef. Calorie breakdown: 60% fat, 0% carbs, 40% protein.
1 138 calories in a 3 oz or 85g small size serving of lean roast beef. 2  230 calories in a 5 oz or 142g medium size serving of lean roast beef. 3  369 calories in an 8 oz or 227g large size serving of roast beef.