Writing instrument

Office supplies; artists and teachers materials – Equipment for writing – drawing – or for fine arts – Marking instrument

Patent

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Details

D19 51, 1906

Patent

active

D03959180

REFERENCES:
patent: D258069 (1981-01-01), Malamaud
patent: D266258 (1982-09-01), Lockwood et al.
patent: D274917 (1984-07-01), Hechter
patent: D275577 (1984-09-01), Hechter
patent: D280420 (1985-09-01), Verhaegue
patent: D323852 (1992-02-01), Gomez
patent: D355441 (1995-02-01), Rosenbaum
patent: D359982 (1995-07-01), Rosenbaum
patent: D359983 (1995-07-01), Rosenbaum
patent: D362019 (1995-09-01), Linderson

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