Automatic pressure calibrator
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The broken lines in the figures represent portions of the automatic pressure calibrator in which the design is embodied that form no part of the claimed design.
Claims
The ornamental design for an automatic pressure calibrator, as shown and described.
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Type: Grant
Filed: May 27, 2021
Date of Patent: May 16, 2023
Assignee: Fluke Corporation (Everett, WA)
Inventor: Wei Liu (Shanghai)
Primary Examiner: Antoine Duval Davis
Application Number: 29/785,866