File:USpatent26848 1860.gif
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Size of this preview: 800 × 429 pixels. Other resolutions: 320 × 172 pixels | 640 × 343 pixels | 1,024 × 549 pixels | 1,280 × 687 pixels | 2,334 × 1,252 pixels.
Original file (2,334 × 1,252 pixels, file size: 60 KB, MIME type: image/gif)