Secure type folding door
 An accordion type folding door assembly designed for mounting across the entrance to a space to be secured. The panels of the assembly are interconnected by supplemental hinges completely shielding the spaces from vandalism and forcible entry, while simultaneously rigidifying and stiffening the door structure. 
Woodfold-Marco Mfg., Inc.
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E06B E05D E05Y
inventional inventional additional
John D. Mark F. Ralph D.
Marontate Lewis Jones