File:New Jersey Zinc Vertical Retort Process (US Pat 2457552).svg
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Summary
| Description |
English: Vertical retort process for zinc smelting. Redrawn from US Patent no. 2,457,552 (patent issued 28 Dec 1948 to The New Jersey Zinc Company, inventors E C Handwerk, et. al). |
| Date | |
| Source | Own work, redrawn from U.S. Patent 2,457,552 |
| Author | Mliu92 |
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 07:30, 5 September 2015 | | 910 × 980 (106 KB) | Mliu92 | Zinc ore + carbon (charge) did not show up before due to use of pattern. Redrawn manually. |
| 07:18, 5 September 2015 |  | 910 × 980 (23 KB) | Mliu92 | User created page with UploadWizard |
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