4. Metallurgical apparatus
  5. Combined or convertible

Frank W. Schaefer Inc.

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Aluminum melting furnace

Patent

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Low pressure casting process and apparatus

Metal founding – Process – Shaping liquid metal against a forming surface
Patent

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Metal melting furnace with alternate heating systems

Metallurgical apparatus – Combined or convertible
Patent

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Valve assembly

Fluid handling – With casing – support – protector or static constructional... – Jacketed
Patent

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Valve assembly and method for use in delivery of molten metal

Fluid handling – Processes – Cleaning – repairing – or assembling
Patent

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