US D1,030,438 S
Diamond whetstone
Dongchen Huang, Wuxi (CN)
Assigned to Wuxi Dongzhi Technology Co., Ltd.
Filed by Wuxi Dongzhi Technology Co., Ltd., Wuxi (CN)
Filed on Jun. 8, 2022, as Appl. No. 29/841,690.
Term of patent 15 Years
LOC (14) Cl. 08 - 05
U.S. Cl. D 8—93  [D8/91]
OG exemplary drawing
 
The ornamental design for a diamond whetstone, as shown and described.