Demonstration model (vacuum engine demonstration model)
CN309819948SActive Publication Date: 2026-02-27TIANJIN QIXING POWER TECH
View PDF 0 Cites 0 Cited by
Patent Information
- Application Number
- CN202530473105.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Designs(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-12
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2040-08-12
Smart Images

Figure 000002_ABST
Abstract
1. The name of the design product: teaching demonstration model (vacuum engine demonstration model). 2. The use of the design product: teaching demonstration model (vacuum engine demonstration model), used to show the working principle of vacuum engine, teaching demonstration. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.
Need to check novelty before this filing date? Find Prior Art