(19)
(11) EP 0 056 044 A1

(12)

(43) Date of publication:
21.07.1982 Bulletin 1982/29

(21) Application number: 81902031.0

(22) Date of filing: 21.07.1981
(51) International Patent Classification (IPC): 
E01C 19/ 10( . )
(86) International application number:
PCT/AU1981/000094
(87) International publication number:
WO 1982/000308 (04.02.1982 Gazette 1982/04)
(84) Designated Contracting States:
DE FR GB NL

(30) Priority: 21.07.1980 AU 19800004619

(71) Applicant: HOPGOOD DUNSTAN & PARTNERS PTY. LTD.
Wacol, Qld. 4076 (AU)

(72) Inventor:
  • DUNSTAN, Trevor George
    Redlands Bay, Old. 4165 (AU)

   


(54) A METHOD AND MEANS FOR INTRODUCING FINE PARTICULATE MATERIAL