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Hardening coil and method of heat treatment of toothed metal strips
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Electric switch for high frequency heating coils
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High frequency coil transformer switch
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Method for the formation of cylinders
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Improvements in induction heating apparatus
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Improvements to induction heating coils
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Single coil enhancements for induction heaters
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Improvements in or relating to an inductor for induction heating apparatus
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Electrode structure and method for dielectric heating
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Brazing metal joints protected by sodium silicate, by means of induction heating
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Improvements in or relating to inductor for high frequency induction heating
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Improvements to induction heaters
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Methods and apparatus for dielectric heating of fluid materials
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Improvements to high frequency power transformers
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Method and apparatus for treating materials dielectrically
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Electrical inverter system
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Electrical inverter system
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Induction heating apparatus
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Inductor for induction heating of objects of various sizes and shapes
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Induction heating coil
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