File:USpatentD193986.gif
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![File:USpatentD193986.gif](https://upload.wikimedia.org/wikipedia/commons/thumb/2/29/USpatentD193986.gif/710px-USpatentD193986.gif?20050911091806)
Size of this preview: 710 × 599 pixels. Other resolutions: 284 × 240 pixels | 569 × 480 pixels | 910 × 768 pixels | 1,195 × 1,009 pixels.
Original file (1,195 × 1,009 pixels, file size: 51 KB, MIME type: image/gif)