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GB566430A
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Improvements in magnetic field indication means
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GB573152A
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Improvements in or relating to the detection of faults in non-magnetic materials
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GB573183A
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Improvements in or relating to the detection of faults in the surfaces of articles
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GB561856A
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Improvements in or relating to the detection of faults in parts of magnetic material
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GB547714A
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Improvements in or relating to the detection of variation in wall thickness of tubes of magnetic material
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GB522294A
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Improvements in or relating to apparatus for separating magnetic particles from fluids
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GB509780A
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Improved apparatus for sorting ferromagnetic articles according to their mechanical hardness
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GB463119A
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Improvements in or relating to a process of treating magnetic materials for the detection of cracks or other flaws
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GB441418A
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Improvements relating to apparatus for separating magnetic particles from liquids
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GB439324A
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Improvements relating to a method of and apparatus for observing the nature of a magnetic field
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GB419110A
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Improved method of and apparatus for detecting faults in rods or the like of magnetic material
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