Method of making shell molds with thin core
United States Patent 2820268
US Patent References:
Process of preparing precision castings
- - 2682692


Inventors:
Kohl, Everard F.
Publication Date:
01/21/1958
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Assignee:
Kohl, Everard F.
Primary Class:
164/8
Other Classes:
164/528, 164/525, 164/527
International Classes:
B22C9/04; B22C9/12; B22C9/00
Foreign References:
GB585665A