(19)

(11)

EP 1 871 571 A2

(12)

(88) Date of publication A3: 07.12.2006 (43) Date of publication: 02.01.2008 Bulletin 2008/01 (21) Application number: 06711246.6 (22) Date of filing: 28.02.2006

(51) International Patent Classification (IPC):  B24B 1/00(2006.01) (86) International application number: PCT/IL2006/000264 (87) International publication number: WO 2006/097915 (21.09.2006 Gazette 2006/38)

(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: 14.03.2005 IL 16742305 (71) Applicant: Israel Diamond Institute 52521 Ramat-gan (IL)	(72) Inventors: KELMAN, Moshe 99000 Bet Shemesh (IL) MOALEM, Menachem 44231 Kefar-sava (IL) (74) Representative: Modiano, Micaela Nadia et al Modiano Josif Pisanty & Staub Ltd Thierschstrasse 11 80538 München 80538 München (DE)