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Viscodrill Trademarks
VISCODRILL
Chemicals for increasing viscosity in non-aqueous oilfield drilling fluids
Cancelled
·
January 16, 2014
·
86167216
·
VISCODRILL
Chemicals for increasing viscosity in non-aqueous oilfield drilling fluids
Abandoned
·
September 11, 2012
·
85726467
·
VISCODRILL
Chemicals intended to increase viscosity in non-aqueous fluids used in oilfield drilling operations
Abandoned
·
January 28, 2011
·
85228591
·
VISCODRILL
Chemicals intended to increase viscosity in non-aqueous fluids used in oilfield drilling operations
Abandoned
·
May 29, 2007
·
77191865
·
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