Electronic sign (underground works)

CN309820056SActive Publication Date: 2026-02-27INST OF COMPUTING TECH CHINA ACAD OF RAILWAY SCI +2
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Patent Information

Application Number
CN202530338598.4
Authority / Receiving Office
CN · China
Patent Type
Designs(China)
Current Assignee / Owner
Filing Date
2025-06-12
Publication Date
2026-02-27
Estimated Expiration
2040-06-12

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Abstract

1. Name of the designed product: electronic signboard (hidden engineering). 2. Use of the designed product: the designed product is used as an electronic signboard to display electronic signs. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.
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