Harold W. R. Wardlaw

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Connecting assembly and method
- Patent number 4,216,834
- Issue date Aug 12, 1980
- Brown Oil Tools, Inc.
- Harold W. R. Wardlaw
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Connecting assembly and method
- Patent number 4,081,039
- Issue date Mar 28, 1978
- Brown Oil Tools, Inc.
- Harold W. R. Wardlaw
- E21 - EARTH DRILLING MINING