File:USpatent111998 1971.gif
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Size of this preview: 465 × 599 pixels. Other resolutions: 186 × 240 pixels | 372 × 480 pixels | 596 × 768 pixels | 794 × 1,024 pixels | 1,347 × 1,736 pixels.
Original file (1,347 × 1,736 pixels, file size: 68 KB, MIME type: image/gif)