Marking instrument

Details Marking instrument Marking instrument

1990-10-18

1992-09-29

Vales-Lado, Carmen H.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 43, D19 51, D19 57

Patent

active

D03298736

REFERENCES:
patent: D143049 (1945-11-01), Waldinger
patent: D149672 (1948-05-01), Philips
patent: D310684 (1990-09-01), Itoh
patent: D312658 (1990-12-01), Sumino
patent: D316427 (1991-04-01), Tinz
patent: D317324 (1991-06-01), Chuang
patent: D321719 (1991-11-01), Nitta
patent: D324068 (1992-02-01), Herbst et al.

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