Office supplies; artists and teachers materials – Equipment for writing – drawing – or for fine arts – Marking instrument
Patent
1999-09-28
2000-06-27
Holtje, Martie K.
Office supplies; artists and teachers materials
Equipment for writing, drawing, or for fine arts
Marking instrument
D19 51, D19 56, D19 57, 1906
Patent
active
D04272390
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patent: D275297 (1984-08-01), Ohyabu
patent: D277393 (1985-01-01), Oyabu
patent: D279383 (1985-06-01), Hillebrand et al.
patent: D329661 (1992-09-01), Kimura
patent: D330079 (1992-10-01), Dalling et al.
patent: 1728473 (1929-09-01), Brosius
patent: 3074380 (1963-01-01), Polishuk
patent: 3234916 (1966-02-01), Fassbender
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