One end twin heads marker

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

Design Patent

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Details

CD19S055000, CD19S056000, CD19S057000

Design Patent

active

D0462989

CLAIM:
The ornamental design for a one end twin heads marker, as shown and described.

REFERENCES:
patent: 3107654 (1963-10-01), Fehrenbach
patent: D321009 (1991-10-01), Yubisui
patent: 5306092 (1994-04-01), Jenq
patent: 5368405 (1994-11-01), Sixiong
patent: D355442 (1995-02-01), Chuang
patent: D366279 (1996-01-01), Voorhees
patent: D372271 (1996-07-01), Dworman et al.
patent: D378761 (1997-04-01), Sekine
patent: D412532 (1999-08-01), Chuang
patent: D416940 (1999-11-01), Ito
patent: D422023 (2000-03-01), Tedaldi et al.
patent: D442636 (2001-05-01), Kobayashi
patent: D447173 (2001-08-01), Yoon

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