发明人:
김점재 | 문홍만 | 조성학 | 양상돈
简单同族:
CN100409085C | CN1661424A | FR2866748A1 | FR2866748B1 | GB0421126D0 | GB0617747D0 | GB2411484A | GB2411484B | GB2428488A | JP2005242309A | JP4192143B2 | KR100672650B1 | KR1020050086319A | TW200528857A | TWI279620B | US20050185129A1 | US20090262293A1 | US7576826 | US7852449