FRANCIS DRILLING FLUIDS
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United States Patent and Trademark Office
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39
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2008-01-15
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details
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FRANCIS DRILLING FLUIDS
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United States Patent and Trademark Office
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37
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2007-11-27
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details
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FRANCIS DRILLING FLUIDS
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United States Patent and Trademark Office
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42
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2007-11-27
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details
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FRANCIS DRILLING FLUIDS
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United States Patent and Trademark Office
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1
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2007-11-27
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details
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FRANCIS DRILLING FLUIDS
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United States Patent and Trademark Office
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4
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2007-11-27
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details
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FDF
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United States Patent and Trademark Office
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1
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2007-11-13
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details
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FDF
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United States Patent and Trademark Office
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4
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2007-11-06
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details
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FDF
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United States Patent and Trademark Office
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39
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2007-11-06
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details
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FDF
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|
United States Patent and Trademark Office
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42
|
2007-11-06
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|
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details
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FDF
|
|
United States Patent and Trademark Office
|
37
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2007-11-06
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details
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