Flexible door hinge system
United States Patent 3272257
US Patent References:
Swinging door
- - 2279572

Flexible door
- - 2783833

Vertically swinging flexible doors
- - 2827117


Inventors:
Angelo, Dirubbo
Publication Date:
09/13/1966
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Assignee:
A & D FABRICATING CO INC
Primary Class:
160/354
Other Classes:
16/75
International Classes:
E05D3/00; E05F1/12; E06B3/80; E05F1/00; E06B3/70