Novel medical protective mask and production process (Chinese)
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2022
- Patent / Electronic Resource
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Title:Novel medical protective mask and production process
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Additional title:一种新型医用防护口罩及生产工艺
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Patent number:CN114747819
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Patent applicant:
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Patent family:
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Contributors:GUO QUANYI ( author )
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Publisher:
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Publication date:2022-07-15
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Type of media:Patent
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Type of material:Electronic Resource
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Language:Chinese
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Classification:
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