Door made of laminated lumber and having ventilating holes

Movable or removable closures – Panel with closure feature

Patent

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Details

49506, 52457, 52630, 52782, E06B 300

Patent

active

051195933

ABSTRACT:
A door made by assembling a plurality of laminas and having ventilating holes is disclosed. The door is provided with longitudinal and lateral ventilating holes, so that twisting and other deformation of the door is prevented.

REFERENCES:
patent: 3172170 (1965-03-01), Webster
patent: 3512304 (1970-05-01), Meuret
patent: 4034512 (1977-07-01), Lindal
patent: 4908990 (1990-03-01), Yoon et al.

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