Title:
Bend-stretch methods of forming heavy fan blades
United States Patent 2880496


Inventors:
Benedict, Frank R.
Utakis, Anthony F.
Application Number:
US53883155A
Publication Date:
04/07/1959
Filing Date:
09/29/1955
Assignee:
WESTINGHOUSE ELECTRIC CORP
Primary Class:
Other Classes:
29/418, 416/223R
International Classes:
B21D11/02; B21D53/78
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US Patent References:
Foreign References:
DE896184C1953-11-09