Title:
Roll-up door
United States Patent 3148724
US Patent References:
/0546858.html
- - 0546858

Fireproof shutter
- - 1707287

Hinge for folding partitions
- - 2307560

Flexible panel, door, or closure
- - 2311470

Overhead flexible door
- - 2831537


Inventors:
George, Chieger
Schubach, Theodor C.
Publication Date:
09/15/1964
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Assignee:
FRUEHAUF CORP
Primary Class:
160/40
Other Classes:
160/201, 160/231.200
International Classes:
B60J5/14; B61D19/00; E06B9/15; E06B9/17; B60J5/10; E06B9/11
US Patent References:
2952313Sectional upwardly acting doors and like closures
Foreign References:
CA614566A