United States Patent 3488766
Inventors:
Williams, Warren
Rooney, Thomas C.
Jay, Gerald W.
Publication Date:
01/06/1970
Assignee:
Wisconsin, Centrifugal Foundry
Other Classes:
29/428, 228/182, 164/118, 29/527.600, 228/170, 164/77, 228/176
International Classes:
B22D13/06; F16L43/00; B22D13/00; B23P17/04