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Paper holder, drive take-up apparatus
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Mounting equipment for scanning tubular goods
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Thickness measuring apparatus utilizing gamma radiation
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Electromagnetic inspection of pipe
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Tubing caliper
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Tubing caliper
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Measuring instruments
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Apparatus for detecting discontinuities in insulation coatings
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Radioactive pipe thickness measurement
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Apparatus for inspecting ferromagnetic members
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Methods and apparatus for inspecting ferromagnetic members
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Pipe inspection method and apparatus
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Pipe inspection apparatus
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Means for handling pipe protectors
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Caliper having magnetically controlled recorder
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Pipe inspection apparatus
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Pipe inspection
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Tubing calipers
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Inductive electromagnetic inspection
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Apparatus for magnetic detection of flaws in ferromagnetic pipe
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