Foreign References: JP56022964March, 1981CLAMP METER JP06242171September, 1994LEAKAGE CIRCUIT DETECTOR JPS5622964A1981-03-04 JPH06242171A1994-09-02 Primary Examiner: PATEL, PARESH H Attorney, Agent or Firm: Seed IP Law Group LLP/Fluke-All Except Maint. Fees (SEATTLE, WASHINGTON, US) ...