InventHelp Inventor Develops Modified Optical Frames to Secure PPE Mask (BTK-416)
PITTSBURGH, April 6, 2026 /PRNewswire/ -- "I wanted to create modified optical frames that enable you to easily secure the straps of protective face masks," said an inventor, from Pittsview, Ala., "so I invented the MASK SLIT (EYEWEAR). My design provides added comfort, and it reduces...
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