According to BLS, the average median earnings for all postsecondary teachers is $58,000 across the U.S., as of publication. Full-time faculty members have an annual average salary of $79,000, while professors average $108,000, according to the American Association of University Professors.
The Ryobi Tools brand in North America, Europe, Australia and New Zealand is owned by Techtronic Industries of Hong Kong, an original equipment manufacturer for brands such as Craftsman, Ryobi, and Ridgid.
As far as I know, all the Ridgid plumbing tools are still made in USA. TTI also has Dirt Devil, Hoover, and some other vacuum brands. They just acquired the Milwaukee brand last spring, as I recall. Hitachi is a huge conglomerate in itself. The power tool division is actually one of the smaller operations, though it's one of the oldest tool makers. Did you know they invented the SCMS? They're into everything from semiconductors,electronics, and appliances to heavy equipment, elevators and power plants.