(19)
(11) EP 0 124 575 A1

(12)

(43) Date of publication:
14.11.1984 Bulletin 1984/46

(21) Application number: 83903601.0

(22) Date of filing: 31.10.1983
(51) International Patent Classification (IPC): 
B23B 31/ 00( . )
(86) International application number:
PCT/SE1983/000372
(87) International publication number:
WO 1984/001913 (24.05.1984 Gazette 1984/13)
(84) Designated Contracting States:
AT BE CH DE FR GB LI LU NL SE

(30) Priority: 10.11.1982 US 19820440739

(71) Applicant: NAESLUND, Roland
S-881 00 SOlleftea (SE)

(72) Inventor:
  • NAESLUND, Roland
    S-881 00 SOlleftea (SE)

   


(54) DRILL CONSTRUCTION