File:Incandescent Electric Lighting - Efficiency - Fig 13.png
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Summary
| Description |
English: Fig. 13. |
| Date | |
| Source | https://en.wikisource.org/wiki/Page:Incandescent_electric_lighting-_A_practical_description_of_the_Edison_system.djvu/145 |
| Author | Louis H. Latimer |
Licensing
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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 20:56, 18 April 2022 | | 2,038 × 1,458 (243 KB) | Sp1nd01 | Uploaded a work by Louis H. Latimer from https://en.wikisource.org/wiki/Page:Incandescent_electric_lighting-_A_practical_description_of_the_Edison_system.djvu/145 with UploadWizard |
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