JAMES
ELECTRICAL COILS, TRANSFORMERS, ELECTROMECHANICAL CHOPPERS, PHOTOELECTRIC CHOPPERS, RELAYS, SOLENOIDS, SWITCHES, AMMETERS, VOLTMETERS, VIBRATORS, INDUCTORS, READOUT DISPLAYS, MATURITY TEST INSTRUMENTS FOR CONCRETE, ELECTRONIC THERMOMETERS, MAGNETIC INSTRUMENTS FOR LOCATING AND MEASURING MAGNETIC OBJECTS COVERED BY NON-MAGNETIC MATERIAL, MAGNETIC INSTRUMENTS FOR MEASURING AND/OR RECORDING THE DEPTH OF MAGNETIC OBJECTS COVERED BY NON-MAGNETIC MATERIAL, ULTRASONIC TRANSDUCERS, AND ULTRASONIC INS...
Expired · October 18, 1977 · 73145071 ·