JM Christie, AD Duree, MJ Gardner, WL Wiley… - US Patent …, 2000 - Google Patents
1995, Pat. No. 5,991,301, which is a continuation-in-part of c US applical IOn No. s, Ille ay
2U, application No. 08/238,605, May 5, 1994, abandoned, and a continuation-in-part of …