4. Metal founding
  5. Stripper or ejector
  6. Means to separate cast product from shaping surface

Earl H. Sigman

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Apparatus for stripping ingots from molds

Metal founding – Stripper or ejector – Means to separate cast product from shaping surface
Patent

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Positive grip lifting mechanism

Traversing hoists – With haul-in line
Patent

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Waste material processing apparatus

Furnaces – Refuse incinerator – With means for advancing or handling refuse or residue
Patent

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Waste material processing apparatus and method

Furnaces – Refuse incinerator – With means for advancing or handling refuse or residue
Patent

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Waste materials processing apparatus and method

Furnaces – Process – Treating fuel constituent or combustion product
Reexamination Certificate

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