1
Thomas J Conrad, Yin Yin Wong: Computer system with graphical user interface including automated enclosures. Apple Computer, Blakely Sokoloff Taylor & Zafman, October 21, 1997: US05680562 (94 worldwide citation)

A new behavior in a graphical user interface allows the user to open and close enclosures, while dragging an object. When the user pauses, gestures, or rolls over a hot spot on top of an icon or text representing a closed enclosure, a temporary window for the closed enclosure is "sprung open" to all ...


2
Thomas J Conrad, Yin Y Wong: Computer system with graphical user interface including automated enclosures. Apple Computer, December 10, 1996: US05583984 (38 worldwide citation)

A new behavior in a graphical user interface allows the user to open and close enclosures, while dragging an object. When the user pauses, gestures, or rolls over a hot spot on top of an icon or text representing a closed enclosure, a temporary window for the closed enclosure is "sprung open" to all ...