Calibration block
Latest HOLLOWAY NDT & ENGINEERING INC. Patents:
Description
Claims
The ornamental design for a calibration block, as shown and described.
Referenced Cited
U.S. Patent Documents
Patent History
Patent number: D881728
Type: Grant
Filed: Oct 26, 2018
Date of Patent: Apr 21, 2020
Assignee: HOLLOWAY NDT & ENGINEERING INC. (Georgetown)
Inventor: Paul Holloway (Georgetown)
Primary Examiner: Antoine Duval Davis
Application Number: 29/668,083
Type: Grant
Filed: Oct 26, 2018
Date of Patent: Apr 21, 2020
Assignee: HOLLOWAY NDT & ENGINEERING INC. (Georgetown)
Inventor: Paul Holloway (Georgetown)
Primary Examiner: Antoine Duval Davis
Application Number: 29/668,083
Classifications
Current U.S. Class:
Angle Or Direction (7) (D10/65)