A Gorokhov,
EH Teague, A Khandekar - US Patent 8,787,347, 2014 - Google Patents
4,747,137 A 5/1988 Matsunaga 6.271, 946 B1 8/2001 Chang et al. 4,783,779 A 1 1/1988
Takahata et al. 6,272,122 B 1 8/2001 Wee et al. 4,783,780 A 11, 1988 Alexis 6,310,704 B1 …