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Graphics Interchange Format  |  1998-02-10  |  32.6 KB  |  452x193  |  4-bit (16 colors)
   ocr: Originator Memento Caretaker state state SetMementof) SetState() CreateMemento() o1 GetState() State F (.GetStatel) macreate Memento: mSetState (state) tetumm Figure 3: Tbe Memento patterr structure.