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.
There are 69 calories in 1 ounce of Beef Chuck (Arm Pot Roast, Trimmed to 1/8. Fat). Calorie breakdown: 66% fat, 0% carbs, 34% protein.