M Arseneau, A Charette, J Arseneau - US Patent 8,051,453, 2011 - Google Patents
5,223,987 A* 6/1993 Muller............................ 386/77 213531382 3} $88; Acme “: 1 5,263,156
A 11/1993 Bowen et a1. 614341530 B1 8/2002 slusemsf 5,289,272 A 2/1994 Rabowsky et …