Marking pen
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- REVERSIBLY THERMOCHROMIC COMPOSITION AND REVERSIBLY THERMOCHROMIC MICROCAPSULE PIGMENT ENCAPSULATING THE SAME
The broken lines shown are included to show unclaimed subject matter only and form no part of the claimed design.
Claims
The ornamental design for a marking pen, as shown and described.
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Type: Grant
Filed: Sep 17, 2014
Date of Patent: Nov 24, 2015
Assignee: KABUSHIKI KAISHA PILOT CORPORATION (Tokyo)
Inventor: Naomi Matsumura (Tokyo)
Primary Examiner: Elizabeth Albert
Application Number: 29/502,530