U.S. federal trademark · Serial No. 86130787 · Reg. No. 4647977
oilfield equipment, namely, impact tools used in the drilling of oil and gas wells; down hole drilling tools, namely, drilling jars used to apply a jarring action to release a stuck portion of drill string; energizer tools used to store and release energy upon actuation of the drilling jar to achieve high impact and optimize drilling jar performance; shock tools used to isolate the drill string from axial deflections and protect the drill bit from excessive wear during drilling operations
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