(19)
(11) EP 0 244 443 A1

(12)

(43) Date of publication:
11.11.1987 Bulletin 1987/46

(21) Application number: 86906183.0

(22) Date of filing: 26.09.1986
(51) International Patent Classification (IPC): 
G06F 15/ 16( . )
G06F 15/ 80( . )
G06F 11/ 00( . )
G11C 29/ 00( . )
G06F 15/ 173( . )
H04L 12/ 56( . )
G06F 11/ 14( . )
(86) International application number:
PCT/US1986/002039
(87) International publication number:
WO 1987/002155 (09.04.1987 Gazette 1987/08)
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 27.09.1985 US 19850781265

(71) Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Palo Alto, CA 94304 (US)

(72) Inventors:
  • DAVIS, Alan, Lynn
    Half Moon Bay, CA 94019 (US)
  • ROBISON, Shane, V.
    Half Moon Bay, CA 94019 (US)
  • STEVENS, Kenneth, Scott
    Union City, CA 94587 (US)

(74) Representative: Cross, Rupert Edward Blount, et al 
BOULT, WADE & TENNANT 27 Furnival Street
London EC4A 1PQ
London EC4A 1PQ (GB)

   


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