Drexel Equipment (UK) Limited

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London, GB

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Patents Grantslast 30 patents

Information Patent Grant
Downhole pressure and/or temperature gauges
- Patent number 4,805,448
- Issue date Feb 21, 1989
- Drexel Equipment (UK) Limited
- Richard A. Armell
- E21 - EARTH DRILLING MINING
Information Patent Grant
Centralizing devices for use in bore-holes
- Patent number 4,790,381
- Issue date Dec 13, 1988
- Drexel Equipment (UK) Limited
- Richard A. Armell
- E21 - EARTH DRILLING MINING
Information Patent Grant
Centralizing devices for use down-well
- Patent number 4,619,322
- Issue date Oct 28, 1986
- Drexel Equipment (UK) Limited
- Richard A. Armell
- E21 - EARTH DRILLING MINING
Information Patent Grant
Seal for incorporation in high pressure leak testing tool
- Patent number 4,438,938
- Issue date Mar 27, 1984
- Boc-Nowsco Limited
- Richard A. Armell
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

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