Apparatus and method for treating foundry sand
United States Patent 2478461
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Inventors:
Connolly, George E.
Publication Date:
08/09/1949
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Assignee:
NICHOLS ENGINEERING & RES CORP
Primary Class:
Other Classes:
134/2, 451/447, 241/DIG.010, 164/5
International Classes:
B22C5/08; B22C5/00
US Patent References:
2326218Process of reclaiming foundry sand
Foreign References:
GB172221A