Dart having bristles and a scraper
Latest National Heat Exchange Cleaning Corp. Patents:
The broken lines shown represent unclaimed subject matter and form no part of the claimed design.
Claims
The ornamental design for a dart having bristles and a scraper, as shown and described.
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Type: Grant
Filed: Apr 9, 2015
Date of Patent: Oct 23, 2018
Assignee: National Heat Exchange Cleaning Corp. (Youngstown, OH)
Inventors: Brian D. Antal (Fombell, PA), Carroll E. Joseph (Leetonia, OH)
Primary Examiner: Ian Simmons
Assistant Examiner: Yolanda Robinson
Application Number: 29/523,405