WV Quintana, MJ Rinaldi, MA Norton… - US Patent …, 2010 - Google Patents
3,801,752 A* 4, 1974 Gdovichin............. 191,122 R 4,976,387 A 12/1990 Spianti 5,124,915 A
6, 1992 Krenzel 5,146,611 A* 9/1992 Stolarczyk................... 455/40 5,305,244 A 4, 1994 …