Twist drill
Description
The broken lines in the drawings depict portions of the twist drill which form no part of the claimed design.
Claims
The ornamental design for a twist drill, as shown and described.
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Patent History
Patent number: D881957
Type: Grant
Filed: Jun 27, 2019
Date of Patent: Apr 21, 2020
Inventor: Hongjia Wang (Shanghai)
Primary Examiner: Patricia A Palasik
Application Number: 29/696,337
Type: Grant
Filed: Jun 27, 2019
Date of Patent: Apr 21, 2020
Inventor: Hongjia Wang (Shanghai)
Primary Examiner: Patricia A Palasik
Application Number: 29/696,337
Classifications
Current U.S. Class:
Cutting Tool, E.g., Drill Bit, Etc. (D15/139)