U.S. federal trademark · Serial No. 77395974 · Reg. No. 006407027
GEOPHYSICAL SURVEYING APPARATUS AND INSTRUMENTS FOR USE IN LOCATING, TRACING, IDENTIFYING AND FAULT-FINDING IN RELATION TO UNDERGROUND CABLES, PIPES AND DRAINS; ELECTROMAGNETIC FIELD DETECTORS AND PARTS AND FITTINGS FOR ALL THE AFORESAID GOODS
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