InventHelp Inventor Develops Protective Sleeve Machine for Cards (ACC-468)

PITTSBURGH, Oct. 28, 2025 /PRNewswire/ -- "I wanted to create a machine that would provide a quick and easy means of positioning collectible cards within laminated sleeves," said an inventor, from Muskegon Heights, Mich., "so I invented the AUTO SLEEVER. My design eliminates the time and...