The Northern Sun Intercollegiate Conference is a college athletic conference which operates in the midwestern United States. It participates in the NCAA's Division II.
... device is covered by US patents 3,726,146 (1973) and 5,353,655 (1994) by L.A. Mishler and US patent 5,800,311 (1998) by P.S.Chuang.
External links
www.gyrotwister.de ...