Apparatus for making tapered metal blanks for key brick cases
United States Patent 3085458
Inventors:
Platt, Richard O.
Lloyd, Thomas W.
Publication Date:
04/16/1963
Assignee:
Harbison, Walker Refractories
Other Classes:
83/255, 83/917, 83/683, 83/572, 83/550
International Classes:
B21D51/10; B21D51/00