Desk tray

Details Desk tray Desk tray

1991-02-11

1993-04-06

Holtje, Nelson C.

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Holder or file

D19 75, D19 86, D19 95

Patent

active

D03345939

REFERENCES:
patent: D101974 (1936-11-01), Sengbusch
patent: D105859 (1937-08-01), Fry
patent: D115677 (1939-07-01), Ullmo
patent: D154300 (1949-06-01), Morris
patent: D259428 (1981-06-01), Macowski
patent: D269017 (1983-05-01), Martin
patent: D309918 (1990-08-01), Evanson
patent: D310108 (1990-08-01), Rittenhouse
patent: D323188 (1992-01-01), Evenson et al.
patent: D323855 (1992-02-01), Evenson
patent: 4534475 (1985-08-01), Mayo

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