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#Trackball mouse for martin mpc pdf
Google Patents Method and apparatus for providing force feedback for a graphical user interfaceÄownload PDF Info Publication number WO1997021160A2 WO1997021160A2 PCT/IB1996/001441 IB9601441W WO9721160A2 WO 1997021160 A2 WO1997021160 A2 WO 1997021160A2 IB 9601441 W IB9601441 W IB 9601441W WO 9721160 A2 WO9721160 A2 WO 9721160A2 Authority WO WIPO (PCT) Prior art keywords force cursor user recited target Prior art date Application number PCT/IB1996/001441 Other languages English ( en) Google Patents WO1997021160A2 - Method and apparatus for providing force feedback for a graphical user interface
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WO1997021160A2 - Method and apparatus for providing force feedback for a graphical user interface