Via Macintouch, a submission from Chuck Gaudette about the history of a chain saw manufacturer:

During the next several decades, the company continued to grow and expand into new markets. In 1958, the company name was changed to McCulloch Corporation. In 1968, McCulloch introduced the Power Mac 6; weighing only 8.5 pounds fully fueled; it was the world’s lightest chain saw. The affordable Mini Mac 1, introduced in 1972 opened the chain saw market to the casual user.