(19)
(11)
EP 1 181 156 A1
(12)
(43)
Date of publication:
27.02.2002
Bulletin 2002/09
(21)
Application number:
00929924.9
(22)
Date of filing:
04.05.2000
(51)
International Patent Classification (IPC)
7
:
B43L
21/00
(86)
International application number:
PCT/KR0000/424
(87)
International publication number:
WO 0068/025
(
16.11.2000
Gazette 2000/46)
(84)
Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI
(30)
Priority:
07.05.1999
JP 12738999
(71)
Applicant:
Jang, Chang-Ho
Kangnam-gu, Seoul 135-280 (KR)
(72)
Inventor:
Jang, Chang-Ho
Kangnam-gu, Seoul 135-280 (KR)
(74)
Representative:
KOHLER SCHMID + PARTNER
Patentanwälte Ruppmannstrasse 27
70565 Stuttgart
70565 Stuttgart (DE)
(54)
AN APPARATUS AND A METHOD FOR AUTOMATICALLY ERASING A BLACKBOARD