Apparatus and method for producing a magnetic image of a conduct
Apparatus for securing storage tape on a test piece during magne
Apparatus to receive signals from electromagnetic coupler
Apparatus to receive signals from electromagnetic coupler
Leakage flux flaw detection method and apparatus utilizing a lay
Magnetic testing device for internal surfaces of pipe using a ma
Magnetizer having a main electromagnet and leakage flux reducing
Magnetizing device for recording flaw fields in the process of m
Magnetizing device with yoke having loosely fitted coil sections
Method of magnetographic inspection of quality of materials