InventHelp Inventor Develops Improved Design for Mechanical Key Locks (RSJ-123) ...Middle East

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InventHelp Inventor Develops Improved Design for Mechanical Key Locks (RSJ-123)
PITTSBURGH, Aug. 1, 2022 /PRNewswire/ -- "I wanted to create a more secure lock chamber that can only be rotated or turned by the pressure or force of the compatible multi-shank key," said an inventor, from San Bernardino, Calif., "so I invented the MULTI-CHAMBERED LOCK. My high security...

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