CN207927834U - 一种用于耳鼻咽喉头颈外科的多功能防护面罩 - Google Patents
一种用于耳鼻咽喉头颈外科的多功能防护面罩 Download PDFInfo
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Legal Events
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanxi Medical University Asset Management Co., Ltd Assignor: Shanxi Medial University Contract record no.: X2019980000611 Denomination of utility model: Multi-function protective mask for otolaryngology head and neck surgery Granted publication date: 20181002 License type: Common License Record date: 20191115 |
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EC01 | Cancellation of recordation of patent licensing contract | ||
EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Shanxi Medical University Asset Management Co.,Ltd. Assignor: SHANXI MEDICAL University Contract record no.: X2019980000611 Date of cancellation: 20210422 |