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.
Calories in Fresh Roast Beef Sliders (3pk from grocery store deli - 3 sliders=1 serving) Serving Size: 1 serving. Amount Per Serving. Calories 440.0. Total Fat 16.0 g. Saturated Fat 8.0 g. Polyunsaturated Fat 0.0 g. Monounsaturated Fat 0.0 g.