Knob of a dental matrix device
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The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application with color drawings will be provided by the Office upon request and payment of the necessary fee.
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The ornamental design for a knob of a dental matrix device, as shown and described.
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- 20x Plastic Control Knob InsertType 12mmDx19mmH 6mm D Shaft Grey A5. Retrieved on Jun. 29, 2020. Retrieved from the Internet: https://www.ebay.com/itm/20x-Plastic-Control-Knob-Insert-Type-12mmDx19mmH-6mm-D-Shaft-Grey-A5-/153429979390.
Filed: Aug 20, 2019
Date of Patent: May 18, 2021
Assignee: Ultradent Products, Inc. (South Jordan, UT)
Inventors: Thomas John Webster (Riverton, UT), Bruce S. McLean (Sandy, UT), Wade Robert Michael Smith (Pleasant Grove, UT)
Primary Examiner: Wan Laymon
Application Number: 29/702,590