(19)
(11) EP 0 383 801 A1

(12)

(43) Date of publication:
29.08.1990 Bulletin 1990/35

(21) Application number: 88909215.0

(22) Date of filing: 19.10.1988
(51) International Patent Classification (IPC): 
B25J 18/ 00( . )
E01D 19/ 14( . )
E04C 3/ 22( . )
E01D 11/ 02( . )
E04B 1/ 32( . )
(86) International application number:
PCT/GB1988/000891
(87) International publication number:
WO 1989/003921 (05.05.1989 Gazette 1989/10)
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 19.10.1987 GB 19870024453

(71) Applicant: The British Petroleum Company p.l.c.
London EC2Y 9BU (GB)

(72) Inventor:
  • PARKHOUSE, John, Graham
    Epsom Surrey KT19 8SG (GB)

(74) Representative: Senior, Alan Murray 
J.A. KEMP & CO., 14 South Square, Gray's Inn
London WC1R 5LX
London WC1R 5LX (GB)

   


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