Composite 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 56, D19 57, D19 36, 1906

Patent

active

D03878040

REFERENCES:
patent: D312837 (1990-12-01), Oka
patent: D352311 (1994-11-01), Waldinger
patent: D355673 (1995-02-01), Takahashi
patent: D362019 (1995-09-01), Linderson
patent: D362020 (1995-09-01), Waldinger
patent: D373383 (1996-09-01), Izushima
patent: D374893 (1996-10-01), Yazawa

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