CAMPBELL INDUSTRIES LTD.

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Edmonton, Alberta, CA

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Patents Grantslast 30 patents

Information Patent Grant
Coupling device for a drive assembly
- Patent number 6,095,241
- Issue date Aug 1, 2000
- Campbell Industries Ltd.
- Linden H. Bland
- E21 - EARTH DRILLING MINING
Information Patent Grant
Integral tubing head and rotator
- Patent number 6,026,898
- Issue date Feb 22, 2000
- Campbell Industries Ltd.
- Linden H. Bland
- E21 - EARTH DRILLING MINING
Information Patent Grant
Rotating rod string position adjusting device
- Patent number 5,653,290
- Issue date Aug 5, 1997
- Campbell Industries Ltd.
- Linden H. Bland
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

Information Trademark
74340411 - PAT-WELL
- Serial number 74340411
- Filing date Dec 16, 1992
- CAMPBELL INDUSTRIES LTD.
- 7 - Machines and machine tools