(19)

(11)

EP 1 954 884 A1

(12)

(43) Date of publication: 13.08.2008 Bulletin 2008/33 (21) Application number: 06812613.5 (22) Date of filing: 15.11.2006

(51) International Patent Classification (IPC):  E02D 17/04(2006.01) (86) International application number: PCT/KR2006/004800 (87) International publication number: WO 2007/058463 (24.05.2007 Gazette 2007/21)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 16.11.2005 KR 20050109708 16.11.2005 KR 20050109709 (71) Applicant: Supportec Co., Ltd. Seoul 135-964 (KR)	(72) Inventor: BAIK, Seung Deok Seoul 138-919 (KR) (74) Representative: Pulieri, Gianluca Antonio  Jacobacci & Partners S.p.A. Piazza della Vittoria, 11 25122 Brescia 25122 Brescia (IT)