Donald C. MacGregor

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Warren, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Fuel treatment device
- Patent number 5,154,153
- Issue date Oct 13, 1992
- Donald C. MacGregor
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Apparatus for lateral drain hole drilling in oil and gas wells
- Patent number 5,148,877
- Issue date Sep 22, 1992
- Donald C. MacGregor
- E21 - EARTH DRILLING MINING
Information Patent Grant
Chain driven cutting bucket for use in deep mining
- Patent number 4,234,233
- Issue date Nov 18, 1980
- Robert L. Hurd
- E21 - EARTH DRILLING MINING