Library check-in machine
CN309665816SActive Publication Date: 2025-12-12QINGDAO TECHN COLLEGE
View PDF 0 Cites 0 Cited by
Patent Information
- Application Number
- CN202530183820.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Designs(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2040-04-08
Smart Images

Figure 000007_ABST
Abstract
1. The name of the design product: library sign-in machine. 2. The use of the design product: for signing in, clocking in. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.
Need to check novelty before this filing date? Find Prior Art