Public address communication device (audiovisual communication)
CN309983746SActive Publication Date: 2026-05-15NANJING CHENGLANG INFORMATION TECHNOLOGY CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Designs(China)
- Current Assignee / Owner
- NANJING CHENGLANG INFORMATION TECHNOLOGY CO LTD
- Filing Date
- 2025-11-05
- Publication Date
- 2026-05-15
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Figure 000001_ABST
Abstract
1. The name of the design product: loud communication device (audio-visual communication). 2. The use of the design product: firefighter mask matching product, loud and communication device used in fire fighting, rescue and other occasions, compatible with display gas cylinder pressure function. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective drawing.
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