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B43K
B43K1/00
B43K1/02
B43K1/04
ClassID:
59391
⎘
B43K1/04 - CPC Classification
Classification description:
Nibs ; Writing-points; Split nibs with broadened tips
Recent Application in this class:
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#1
20130322953
2013-12-05
Two side writing fountain pen
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