Key device
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Description
Claims
The ornamental design for a key device, as shown and described.
Referenced Cited
Patent History
Patent number: D876433
Type: Grant
Filed: Sep 6, 2018
Date of Patent: Feb 25, 2020
Assignee: Feitian Technologies Co., Ltd. (Beijing)
Inventors: Zhou Lu (Beijing), Huazhang Yu (Beijing)
Primary Examiner: Austin Murphy
Application Number: 29/662,498
Type: Grant
Filed: Sep 6, 2018
Date of Patent: Feb 25, 2020
Assignee: Feitian Technologies Co., Ltd. (Beijing)
Inventors: Zhou Lu (Beijing), Huazhang Yu (Beijing)
Primary Examiner: Austin Murphy
Application Number: 29/662,498
Classifications
Current U.S. Class:
Personal Access Or Verification Type (D14/383)