Marking instrument

Details Marking instrument Marking instrument

1987-07-15

1990-08-14

Dunkins, Bruce W.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 48, D19 56, D19 57

Patent

active

D03099130

REFERENCES:
patent: D260272 (1981-08-01), Horntrich
patent: D266335 (1982-09-01), Chau
patent: D268935 (1983-05-01), Horntrich
patent: D271889 (1983-12-01), Kruckel et al.
patent: D282378 (1986-01-01), Ohyabu et al.
patent: D295537 (1988-05-01), Davidson et al.

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