(19)
(11) EP 0 598 049 A1

(12)

(43) Date of publication:
25.05.1994 Bulletin 1994/21

(21) Application number: 92918043.0

(22) Date of filing: 07.08.1992
(51) International Patent Classification (IPC): 
E04H 3/ 12( . )
E04H 3/ 28( . )
(86) International application number:
PCT/US1992/006639
(87) International publication number:
WO 1993/003240 (18.02.1993 Gazette 1993/05)
(84) Designated Contracting States:
DE ES FR GB

(30) Priority: 09.08.1991 US 19910743154
31.07.1992 US 19920923368

(71) Applicant: SICO INCORPORATED
Minneapolis, MN 55440 (US)

(72) Inventors:
  • LUEDKE, Thomas, J.
    Apple Valley, MN 55124 (US)
  • AAGAARD, Randy, G.
    Richfield, MN 55423 (US)
  • NIEMI, Carl, A.
    Excelsior, MN 55331 (US)
  • SHEA, Andrew, J.
    Eden Prairie, MN 55344 (US)
  • ANDERT, Gary, W.
    Rosemount, MN 55068 (US)
  • BOTTS, Rollin, D.
    Bloomington, MN 55437 (US)

(74) Representative: Orr, William McLean 
Urquhart-Dykes & Lord, Tower House, Merrion Way
Leeds LS2 8PA
Leeds LS2 8PA (GB)

   


(54) MULTILEVEL FOLDING STAGE