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Pulsed-arc D.C. TIG welding apparatus

Electric heating – Metal heating – By arc
Patent

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Pulsed-arc welding process and device

Electric heating – Metal heating – By arc
Reexamination Certificate

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Pulsed-DC arc welding

Electric heating – Metal heating – By arc
Patent

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Pulsed-plasma incineration method

Electric heating – Metal heating – By arc
Reexamination Certificate

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Pulses generator for electrodischarge machining

Electric heating – Metal heating – Cutting or disintegrating
Patent

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Pulsing intelligent RF modulation controller

Electric heating – Metal heating – By arc
Reexamination Certificate

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Pulsing intelligent RF modulation controller

Electric heating – Metal heating – By arc
Reexamination Certificate

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Pulsing probe for microwave oven

Electric heating – Metal heating – Of cylinders
Patent

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Pulverulent filler and method for applying a wear-resistant...

Electric heating – Metal heating – For deposition welding
Reexamination Certificate

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Punch press with auxillary high-energy thermal cutting device an

Electric heating – Metal heating – By arc
Patent

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Punch press with cutting torch

Electric heating – Metal heating – Cutting or disintegrating
Patent

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Purge block for pipe welding

Electric heating – Metal heating – Nonatmospheric environment at hot spot
Patent

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Purge gas system for welding pipes

Electric heating – Metal heating – By arc
Patent

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Purge management system for gas purged immersion heaters

Electric heating – Heating devices – With heater-unit housing – casing – or support means
Patent

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Purge unit

Electric heating – Metal heating – Nonatmospheric environment at hot spot
Patent

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Purged heater-susceptor for an ALD/CVD reactor

Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Reexamination Certificate

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Push button ignition switch for controlling gas flow and igniter

Electric heating – Heating devices – Resistive element: igniter type
Patent

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PWM controller for DC powered heating blanket

Electric heating – Heating devices – With power supply and voltage or current regulation or...
Reexamination Certificate

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Pyrolysis coated optical fiber splices: apparatus and method

Electric heating – Metal heating – By arc
Patent

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Pyrolytic boron nitride heating unit

Electric heating – Heating devices – With heating unit structure
Patent

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