Manual knife sharpener
Description
Claims
The ornamental design for a manual knife sharpener, as shown and described.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
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Patent History
Patent number: D817738
Type: Grant
Filed: Jun 14, 2016
Date of Patent: May 15, 2018
Inventor: Jack Chen (Henderson, NV)
Primary Examiner: Phillip S Hyder
Application Number: 29/567,995
Type: Grant
Filed: Jun 14, 2016
Date of Patent: May 15, 2018
Inventor: Jack Chen (Henderson, NV)
Primary Examiner: Phillip S Hyder
Application Number: 29/567,995
Classifications
Current U.S. Class:
D8/93