(19)
(11) EP 0 164 385 A1

(12)

(43) Date of publication:
18.12.1985 Bulletin 1985/51

(21) Application number: 85900115.0

(22) Date of filing: 05.12.1984
(51) International Patent Classification (IPC): 
B08B 9/ 04( . )
 B08B 9/ 045( . )
(86) International application number:
PCT/FI1984/000092
(87) International publication number:
WO 1985/002565 (20.06.1985 Gazette 1985/14)
(84) Designated Contracting States:
BE DE GB SE

(30) Priority: 07.12.1983 FI 19830004468

(71) Applicants:
  • YRJÖLÄ, Jukka
    SF-02770 Espoo 77 (FI)
  • AHTILA, Pekka
    SF-00650 Helsinki 65 (FI)
  • HINKKANEN, Vilho
    SF-02360 Espoo 36 (FI)

(72) Inventors:
  • YRJÖLÄ, Jukka
    SF-02770 Espoo 77 (FI)
  • AHTILA, Pekka
    SF-00650 Helsinki 65 (FI)
  • HINKKANEN, Vilho
    SF-02360 Espoo 36 (FI)

   


(54) CLEANING DEVICE FOR VENTILATING DUCT SYSTEMS