Compartmentalized file folder apparatus

Mining or in situ disintegration of hard material – Automatic control; signaling or indicating – Of hard material disintegrating machine

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Details

229 72, B65D 2708

Patent

active

044859627

ABSTRACT:
A compartmentalized file folder having a first expandable and sealable pocket mounted on the inner side of the folder wall and a second expandable pocket mounted on the wall of the first pocket for retaining items of smaller size.

REFERENCES:
patent: 884019 (1908-04-01), Herdegen
patent: 1564557 (1925-12-01), Greenhaus
patent: 1722911 (1929-07-01), Greenhaus
patent: 1743305 (1930-01-01), Banks
patent: 1759255 (1930-05-01), Greenhaus
patent: 1794560 (1931-03-01), Styll
patent: 2222443 (1940-11-01), Rubins
patent: 2274909 (1942-03-01), Murray
patent: 2390864 (1945-12-01), Bayley
patent: 3826422 (1974-07-01), Dickinson
patent: 3933294 (1976-01-01), Meenan et al.

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