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The ornamental design for an audio-visual presentation device, as shown and described.
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An audio-visual presentation device facilitates the presentation and recording of information to an audience. Written material on paper and transparency film can be placed on the device for display to viewers on an attachable viewing device. The device can also be used as a video whiteboard. The entire audio-visual presentation can be recorded for later viewing.
FIG. 1 is a perspective view of an audio-visual presentation device.
FIG. 2 is a front elevation of the audio-visual presentation device.
FIG. 3 is a back elevation of the audio-visual presentation device.
FIG. 4 is a right-side elevation of the audio-visual presentation device.
FIG. 5 is a left-side elevation of the audio-visual presentation device.
FIG. 6 is a top view of the audio-visual presentation device; and,
FIG. 7 is a bottom view of the audio-visual presentation device.
LaPierre, Richard C., Steinfeld, Douglas
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Jun 12 2001 | Viewwriter Technologies | (assignment on the face of the patent) | / | |||
Oct 04 2001 | LAPIERRE, RICHARD C | Viewwriter Technologies | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 012281 | /0326 | |
Oct 04 2001 | STEINFELD, DOUGLAS | Viewwriter Technologies | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 012281 | /0326 |
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