Roller apparatus for opening and flattening tubular stock
United States Patent 2827944

Inventors:
Grossu, Mircea A.
Publication Date:
03/25/1958
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Assignee:
LOMBARD CORP
Primary Class:
72/176
Other Classes:
72/181, 29/33Q, 29/33C, 72/214, 72/205
International Classes:
B21C37/02; B21C37/00
US Patent References:
2313702Apparatus for splitting, spreading, and flattening pipe
2458686Extruded shape
2692421Flattening of extruded stiffened sheets
Foreign References:
GB103215A
DE465161C
FR835850A