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The Mount Union Area Historical Society
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INDUSTRIES
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Harbison Walker Refractories
Harbison Walker Refractories

General Refractories Office (Red Cross Bldg.)
General Refractories Office (Red Cross Bldg.)

North American Refractories
North American Refractories

HARBISON WALKER REFRACTORIES
HARBISON WALKER REFRACTORIES

  
 

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