Explosion-proof loudspeaker

CN309792884SActive Publication Date: 2026-02-13SHANDONG YANGDA PETROLEUM TECH CO LTD
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Patent Information

Application Number
CN202530351673.0
Authority / Receiving Office
CN · China
Patent Type
Designs(China)
Current Assignee / Owner
Filing Date
2025-06-18
Publication Date
2026-02-13
Estimated Expiration
2040-06-18

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Abstract

1. Name of the designed product: explosion-proof loudspeaker. 2. Use of the designed product: sound broadcast in explosion-proof place. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: perspective view 2. 5. The view has clearly expressed the design, and the plan view is omitted.
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