Utility file

Details Utility file Utility file

1986-08-07

1989-10-31

Dunkins, Bruce W.

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Holder or file

D19 86

Patent

active

D03043452

REFERENCES:
patent: D255805 (1980-07-01), Hampshire et al.
patent: D259496 (1981-06-01), Hampshire et al.
patent: D283137 (1986-03-01), Hamar
patent: D287425 (1986-12-01), Kirchner
patent: D289582 (1987-05-01), Brush, Jr. et al.

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