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 Calories In 3 Packet Crockpot Beef Chuck Roast. 2  465 calories, 34g fat, 3g carbs, 34g protein, 0g fiber. 3  Calories In Slow Cooker Beef Chuck Roast with Potatoes & Carotts. 4  581 calories, 41g fat, 22g carbs, 30g protein, 3g fiber.