Daniel C. Hanna, Oregon Entrepreneur and Car Wash Innovator, Dies in Portland at Age 70.

PORTLAND, Ore. -- Daniel C. Hanna, the prolific entrepreneur who founded Rub-a-Dub Car Wash and the subsequent Hanna Car Wash franchise as well as Hanna Enterprises, a worldwide provider of car wash equipment, died in Portland on October 19, 2005, from complications of cancer. He was 70.

Hanna parlayed a youthful passion for cars and high-speed racing into a series of highly successful Oregon businesses, including Hanna Auto Wash, the state's largest car wash chain. At the peak of its growth, the company had more t