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Charles Helfman

Deceased

from Oak Park, MI

Charles Helfman Phones & Addresses

  • Oak Park, MI
  • Farmington Hills, MI
  • Southfield, MI

Us Patents

  • Building Structure

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  • US Patent:
    43763537, Mar 15, 1983
  • Filed:
    Nov 5, 1980
  • Appl. No.:
    6/204219
  • Inventors:
    Charles Helfman - Detroit MI
  • International Classification:
    E06B 104
  • US Classification:
    49504
  • Abstract:
    Composite wood and metal building structure including a metal angle iron frame having an integral latch strike and dead bolt recess therein and a wood door hingedly secured within the frame for installation together therewith in a building opening, with one leg of the angle iron frame extending transversely of the door about the edges thereof and with the other leg of the angle iron door frame extending substantially in the plane of the door about the periphery of a building structure opening.

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