Reporters obtained the following quote from the background information supplied by the inventors: “The present invention relates to fastener means for detachably securing two panel members together and more particularly, to a rotary fastener, which uses two matched curved tracks to control axial displacement of an axle member between a locking position and an unlocking position when the user rotate a base member that carries one curved track relative to a socket member that carries the other cured track.
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via Patent Application Titled “Rotary Fastener” Published Online (USPTO 20150362003) | Equities.com.