Apparatus for forming sheet metal and sheet metal formed thereby
United States Patent 2671492
US Patent References:
/0038779.html
- - 0038779

/0235351.html
- - 0235351

Method of manufacturing corrugated metal plates
- - 1425208

Apparatus for crushing corrugated metal
- - 1462474

Power press
- - 2079553


Inventors:
Biordi, Albert S.
Warner, Jack M.
Publication Date:
03/09/1954
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Assignee:
H I THOMPSON COMPANY
Primary Class:
72/397
International Classes:
B21D5/01
US Patent References:
2199377Method of forming plates
Foreign References:
CH95866A