(19)
(11)
EP 0 809 528 A1
(12)
(43)
Date of publication:
03.12.1997
Bulletin 1997/49
(21)
Application number:
96903296.0
(22)
Date of filing:
09.02.1996
(51)
International Patent Classification (IPC):
B01D
33/
21
( . )
(86)
International application number:
PCT/SE1996/000163
(87)
International publication number:
WO 1996/025218
(
22.08.1996
Gazette 1996/38)
(84)
Designated Contracting States:
DE ES FR GB IT SE
(30)
Priority:
13.02.1995
SE 19950000502
(71)
Applicant:
INGENJÖRSFIRMAN R. FRYKHULT AB
S-113 53 Stockholm (SE)
(72)
Inventor:
FRYKHULT, Rune, H.
S-113 53 Stockholm (SE)
(74)
Representative:
Rosenquist, Per Olof
Bergenstrahle & Lindvall AB, P.O. Box 17704
118 93 Stockholm
118 93 Stockholm (SE)
(54)
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