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US3433683A
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Heat treating method
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US3434010A
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Over current protector device for induction heating installation
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US3432739A
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Voltage regulator for induction heating apparatus
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US3403241A
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Induction heating element
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US3423557A
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Device for moving a cooled zone through an inductively heated workpiece
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US3371971A
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Bearing structure for a vertical motor-generator unit
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US3419792A
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Device for controlling the power factor in the output circuit of a generator
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US3419417A
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Apparatus and method of growing a crystal from a vapor
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US3366768A
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Apparatus and method of welding metal strip
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US3338012A
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Corner bracket for electrical component cabinet
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US3384730A
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Machine feed mechanism
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US3338759A
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Method and apparatus for surface hardening an elongated workpiece having a spade-shaped portion
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US3372261A
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Apparatus for heating an elongated metal workpiece
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US3346712A
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Automatic temperature control
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US3331909A
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Apparatus for energizing an induction melting furnace with a three phase electrical network
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US3360628A
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Inductor for an induction heating apparatus
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US3337200A
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Apparatus for hardening the axial end of a workpiece
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US3331938A
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Conductor with an adjustable workpiece centering arrangement
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US3348098A
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Surge protector for high frequency power system
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US3281659A
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Magnetic amplifier controlled power supply
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