File:USpatent874386 1907.gif
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Size of this preview: 312 × 598 pixels. Other resolutions: 125 × 240 pixels | 250 × 480 pixels | 400 × 768 pixels | 1,153 × 2,211 pixels.
Original file (1,153 × 2,211 pixels, file size: 72 KB, MIME type: image/gif)