Twist drill | Patent Number 11554424

US 11554424 B1
Application Number17321373
Publication Number-
Pendency1 year, 8 months, 8 days
Filled DateMay 14, 2021
Priority DateFeb 14, 2016
Publication Date-
Expiration DateFeb 13, 2036
Inventor/ApplicantsHongjia Wang
ExaminesRAMOS, NICOLE N
Art Unit3722
Technology Center3700
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