Core drill bit
Description
1. Core drill bit
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Claims
The ornamental design for a core drill bit, as shown and described.
Referenced Cited
U.S. Patent Documents
D664019 | July 24, 2012 | Li |
D807139 | January 9, 2018 | Riskin |
20050161263 | July 28, 2005 | Takano |
20180001512 | January 4, 2018 | Mueller |
20190360273 | November 28, 2019 | Thornton |
Patent History
Patent number: D881666
Type: Grant
Filed: Nov 13, 2018
Date of Patent: Apr 21, 2020
Inventor: Kjell Andersson (Kil)
Primary Examiner: Eliza Z Bennett-Hattan
Application Number: 35/506,539
Type: Grant
Filed: Nov 13, 2018
Date of Patent: Apr 21, 2020
Inventor: Kjell Andersson (Kil)
Primary Examiner: Eliza Z Bennett-Hattan
Application Number: 35/506,539
Classifications
Current U.S. Class:
D8/86