“Method for measuring capacitance”, U.S. patentNo. 6828630, 2009.06.16 2014년 9월 3일/카테고리: Patents/Book /작성자: exel https://gistexel.com/wp-content/uploads/2014/08/logo_exel.gif 0 0 exel https://gistexel.com/wp-content/uploads/2014/08/logo_exel.gif exel2014-09-03 14:35:222014-09-03 14:35:25“Method for measuring capacitance”, U.S. patentNo. 6828630, 2009.06.16