Vertical file organizer

Details Vertical file organizer Vertical file organizer

1989-10-24

1992-02-11

Dunkins, Bruce W.

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Holder or file

D19 86, D19 95

Patent

active

D03238547

REFERENCES:
patent: D101974 (1936-11-01), Sengbusch
patent: D115677 (1939-07-01), Uttmo
patent: D123610 (1940-11-01), Bargen
patent: D146138 (1946-12-01), Harwood
patent: D148110 (1947-12-01), Larsen
patent: D168329 (1952-12-01), Blum
patent: D174498 (1955-04-01), Goodwin
patent: D175000 (1955-06-01), Stone
patent: D182443 (1958-04-01), Sherman
patent: D306040 (1990-02-01), Evenson
patent: D313047 (1990-12-01), Evenson
patent: D313546 (1991-01-01), Beirise et al.

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