Writing board
Description
The broken lines in the drawings depict portions of the writing board that form no part of the claimed design.
Claims
The ornamental design for a writing board, as shown and described.
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Patent History
Patent number: D952741
Type: Grant
Filed: Jan 21, 2022
Date of Patent: May 24, 2022
Assignee: SHENZHEN KAICHENG BIDA NETWORK TECHNOLOGY CO., LTD. (Shenzhen)
Inventor: Bing Zhou (Changde)
Primary Examiner: Elizabeth A. Albert
Application Number: 29/824,013
Type: Grant
Filed: Jan 21, 2022
Date of Patent: May 24, 2022
Assignee: SHENZHEN KAICHENG BIDA NETWORK TECHNOLOGY CO., LTD. (Shenzhen)
Inventor: Bing Zhou (Changde)
Primary Examiner: Elizabeth A. Albert
Application Number: 29/824,013
Classifications
Current U.S. Class:
D19/113