File:USpatent1156808 1913.gif
Size of this preview: 800 × 544 pixels. Other resolutions: 320 × 217 pixels | 640 × 435 pixels | 1,024 × 696 pixels | 1,280 × 870 pixels | 1,585 × 1,077 pixels.
Original file (1,585 × 1,077 pixels, file size: 76 KB, MIME type: image/gif)