Apparatus for forming foundry molds
United States Patent 3165794
US Patent References:
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Inventors:
Johnston, Loyal L.
Publication Date:
01/19/1965
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Assignee:
HERMAN PNEUMATIC MACHINE CO
Primary Class:
164/177
Other Classes:
425/182, 425/264, 425/177
International Classes:
B22C13/10; B22D13/10; B22C13/00; B22D13/00
US Patent References:
1134404
1768451
1977257Concrete tile and block machine
2143449Apparatus for making ducts
2757424Core making apparatus
2791013Sand blowing machine
2879563Apparatus for forming a lining on centrifugal mold
3060539Conduit forming machine
Foreign References:
FR423349A
DE544822C