LandOfFree - US Patents - Listing for Metallurgical apparatus,Means sealing or opening aperture in vessel,By means plugging aperture

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Slag retaining device with self-aligning tip

Metallurgical apparatus – Means sealing or opening aperture in vessel – By means plugging aperture

Patent

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Slag stopping plug for tap holes of metal furnaces containing mo

Metallurgical apparatus – Means sealing or opening aperture in vessel – By means plugging aperture

Patent

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Slide closure for the pouring nozzle of a molten metal vessel

Metallurgical apparatus – Means sealing or opening aperture in vessel – By means plugging aperture

Patent

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Stopper device

Metallurgical apparatus – Means sealing or opening aperture in vessel – By means plugging aperture

Patent

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Stopper for a metallurgical melting pot

Metallurgical apparatus – Means sealing or opening aperture in vessel – By means plugging aperture

Reexamination Certificate

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Stopper for a tap hole of a steel converter and method of operat

Metallurgical apparatus – Means sealing or opening aperture in vessel – By means plugging aperture

Patent

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Stopper for use in molten metal handling

Metallurgical apparatus – Means sealing or opening aperture in vessel – By means plugging aperture

Patent

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Stopper means in pouring furnaces

Metallurgical apparatus – Means sealing or opening aperture in vessel – By means plugging aperture

Patent

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Stopper rod

Metallurgical apparatus – Means sealing or opening aperture in vessel – By means plugging aperture

Reexamination Certificate

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Swivel device with cantilever arm

Metallurgical apparatus – Means sealing or opening aperture in vessel – By means plugging aperture

Reexamination Certificate

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