Ink-Pen
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United States of America Patent
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N/A
Issued Date -
Jan 10, 2008
app pub date -
Jul 5, 2006
filing date -
Jul 5, 2006
priority date (Note) -
Abandoned
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Abstract
An improvement of ink-pen is disclosed. The improvement of ink-pen comprises a seal-up element. The seal-up element can protect the lead of the ink-pen effectively and avoid consuming the ink unnecessarily with losing the cover of the ink-pen to extend the lifetime of the improvement of ink-pen.
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