Apparatus for making tapered metal blanks for key brick cases
United States Patent 3085458
US Patent References:
/0566054.html
- - 0566054
/0874515.html
- - 0874515
Web notching and blanking mechanism for outside covers
- - 1640466
Blank cutting machine
- - 1880935
Punch press
- - 1882451
/0566054.html
- - 0566054
/0874515.html
- - 0874515
Web notching and blanking mechanism for outside covers
- - 1640466
Blank cutting machine
- - 1880935
Punch press
- - 1882451
Inventors:
Platt, Richard O.
Lloyd, Thomas W.
Lloyd, Thomas W.
Publication Date:
04/16/1963
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Assignee:
Harbison, Walker Refractories
Primary Class:
Other Classes:
83/255, 83/917, 83/683, 83/572, 83/550
International Classes:
B21D51/10; B21D51/00
US Patent References: