Horizontally supported planar surfaces – Plural related horizontal surfaces – Terraced
Patent
1988-11-16
1993-12-14
Chen, Jose V.
Horizontally supported planar surfaces
Plural related horizontal surfaces
Terraced
211164, A47B 5700
Patent
active
052692329
ABSTRACT:
A system of revolving shelves for filing documents having the same rectangular format is disclosed. The system consists of four shelves revolving around a horizontal axis on which the documents to be filed are replaced.
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