73574316
Dec 19, 1985
Feb 24, 1987
MACHINES FOR INSPECTING METAL OBJECTS TO DETECT FLAWS, CRACKS OR SURFACE BLEMISHES; ELECTROMAGNETIC YOKES; MAGNETIC FIELD INDICATORS; SPECIALIZED LAMPS FOR NON-DESTRUCTIVE TESTING AND LIGHT METERS; PERMANENT MAGNETS; DEMAGNETIZATION COILS; MAGNETIC PARTICLE INSPECTION MACHINES AND PARTS THEREOF
Electrical and Scientific Apparatus