File:USpatent3205892 1965.gif
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Size of this preview: 498 × 600 pixels. Other resolutions: 199 × 240 pixels | 399 × 480 pixels | 638 × 768 pixels | 851 × 1,024 pixels | 1,550 × 1,866 pixels.
Original file (1,550 × 1,866 pixels, file size: 53 KB, MIME type: image/gif)