Renowned entrepreneur and founder of Dyno-Rod, Jim Zockoll, has passed away at the age of 93. Zockoll, who was born on February 14, 1930, in North Braddock, Pennsylvania, was known for his innovative spirit and contributions to the franchising industry. Zockoll grew up in a working-class family and completed high school before serving in the US Armed Forces during the Korean War. After his service…