File:New Jersey Zinc Vertical Retort Process (US Pat 2457552).svg
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Size of this PNG preview of this SVG file: 557 × 600 pixels. Other resolutions: 223 × 240 pixels | 446 × 480 pixels | 713 × 768 pixels | 951 × 1,024 pixels | 1,902 × 2,048 pixels | 910 × 980 pixels.
Original file (SVG file, nominally 910 × 980 pixels, file size: 106 KB)
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 08:30, 5 September 2015 | 910 × 980 (106 KB) | wikimediacommons>Mliu92 | Zinc ore + carbon (charge) did not show up before due to use of pattern. Redrawn manually. |
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