Pencil cup

Details Pencil cup Pencil cup

1989-10-24

1992-02-18

Dunkins, Bruce W.

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Holder or file

D19 65, D19 81, D19 95

Patent

active

D03240770

REFERENCES:
patent: D39591 (1908-09-01), Low
patent: D83465 (1931-02-01), Morrison
patent: D105859 (1937-08-01), Fry
patent: D106911 (1937-11-01), Deppemann
patent: D123610 (1940-11-01), Bargen
patent: D181463 (1957-11-01), de Launay
patent: D219719 (1971-01-01), Fleming
patent: D231139 (1974-04-01), Stahel, II
patent: D233231 (1974-10-01), Mori
patent: D234510 (1975-03-01), Mori
patent: D239443 (1976-04-01), Conney
patent: D299477 (1989-01-01), Klodt

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