InventHelp Inventor Develops New Whistle Design (BDH-1036)

PITTSBURGH, Feb. 16, 2026 /PRNewswire/ -- "I thought there should be a more distinct way for a coach to make whistle calls at a field or sporting facility where multiple games or practices are happening at the same time," said an inventor, from Ellicott City, Md., "so I invented the...

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