Pen

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

Design Patent

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Design Patent

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D0581460

CLAIM:
The ornamental design for a pen, as shown and described.

REFERENCES:
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patent: 2007/0041778 (2007-02-01), Hageman
Li, B., “Pen,” U.S. Appl. No. 29/298,533, filed Dec. 6, 2007.
Qiu, Z., and D. Wei, “Pen,” U.S. Appl. No. 29/278,142, filed Mar. 20, 2007.

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