Clipboard

Details Clipboard Clipboard

1987-11-13

1990-12-04

Dunkins, Bruce W.

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Holder or file

D19 86, D19 90, D19 91

Patent

active

D03126633

REFERENCES:
patent: D159473 (1950-08-01), Cottier
patent: D191483 (1961-10-01), Cory
patent: D218720 (1970-09-01), Shanhan
patent: D228528 (1973-10-01), Smith, Jr.
patent: D236721 (1975-09-01), Stolberg
patent: D240621 (1976-07-01), Houser
patent: D243688 (1977-03-01), Keyko et al.
patent: D296220 (1988-06-01), Hung
patent: D301489 (1989-06-01), Aquila et al.

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