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 48, D19 56, D19 55, 1906

Patent

active

D04350650

REFERENCES:
patent: D265212 (1982-06-01), Spiegel
patent: D283901 (1986-05-01), Horntrich
patent: D359758 (1995-06-01), Inami
patent: D368738 (1996-04-01), Osada et al.
patent: D388825 (1998-01-01), Kouda
patent: D395674 (1998-06-01), Gacia

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