3D printing pen
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Description
Claims
The ornamental design for a 3D printing pen, as shown and described.
Referenced Cited
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Patent History
Patent number: D819131
Type: Grant
Filed: Oct 23, 2016
Date of Patent: May 29, 2018
Assignee: (Yuyao)
Inventor: Honghui Wei (Zhejiang)
Primary Examiner: Elizabeth Albert
Application Number: 29/581,866
Type: Grant
Filed: Oct 23, 2016
Date of Patent: May 29, 2018
Assignee: (Yuyao)
Inventor: Honghui Wei (Zhejiang)
Primary Examiner: Elizabeth Albert
Application Number: 29/581,866
Classifications
Current U.S. Class:
D19/179;
D19/934