U.S. federal trademark · Serial No. 79186621 · Reg. No. 5075889
Measuring, detecting and monitoring instruments, indicators and controllers, namely, a device for detecting and recognizing the fluid level depth, the downhole pressure and the condition of downhole equipment in a borehole for use at deep drilling sites and sites for the exploration and prospection of liquid and gaseous hydrocarbons, deep water and thermal energy; and replacement parts for the aforesaid goods
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