(19)
(11) EP 0 436 595 A1

(12)

(43) Date of publication:
17.07.1991 Bulletin 1991/29

(21) Application number: 89910684.0

(22) Date of filing: 13.09.1989
(51) International Patent Classification (IPC): 
E01C 19/ 50( . )
E04F 21/ 05( . )
(86) International application number:
PCT/SE1989/000495
(87) International publication number:
WO 1990/003478 (05.04.1990 Gazette 1990/08)
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI NL SE

(30) Priority: 29.09.1988 SE 19880003453
29.11.1988 SE 19880004324

(71) Applicant: WESTHED, Pell Sune
S-795 00 Rättvik (SE)

(72) Inventor:
  • WESTHED, Pell Sune
    S-795 00 Rättvik (SE)

(74) Representative: Mrazek, Werner, et al 
Dr. Ludwig Brann Patentbyra AB P.O. Box 1344
S-751 43 Uppsala
S-751 43 Uppsala (SE)

   


(54) METHOD AND APPARATUS FOR FORMING A PATH FOR A SCREEDING MEANS