(84) |
Designated Contracting States: |
|
DE FR GB IT NL |
(30) |
Priority: |
24.12.1997 US 998152 26.12.1997 US 998461
|
(71) |
Applicant: Weatherford/Lamb Inc. |
|
Wilmington, DE 19805 (US) |
|
(72) |
Inventors: |
|
- SPREIJ, Leendert
NL-4872 WZ Etten-Leur (NL)
- ALBRIGHT, Steven, Lee
Houston, TX 77055 (US)
- BEARB, Jean, Donald
McAllen, TX 78501 (US)
- LEICHT, Frederick, Marion
Cypress, TX 77429 (US)
- HAYES, Michael, Warren
Lafayette, LA 70503 (US)
- BIRDWELL, John, Cleveland
Liberty, TX 77575 (US)
|
(74) |
Representative: Harding, Richard Patrick et al |
|
Marks & Clerk,4220 Nash Court,Oxford Business Park South Oxford OX4 2RU Oxford OX4 2RU (GB) |
|