Certificate document

Smoke extractor with purification device

Utility Model Patent Certificate Smoke Extractor with Purification Device Rainbow Hood with Purification Device

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Document information

Standard
Utility Model Patent Certificate
Issuer
State Intellectual Property Office
Certificate number
CN 219328
Issue date
2022-12-01
Expiry date
No expiry date

Utility Model Patent Certificate

Smoke Extractor with Purification Device

Rainbow Hood with Purification Device

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Smoke extractor with purification device