File:Edison incandescent lights.jpg
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Edison_incandescent_lights.jpg (737 × 388 pixels, file size: 84 KB, MIME type: image/jpeg)
Summary
Photo of early paper filament incandescent electric light bulbs invented by Thomas Alva Edison in 1879. The caption read: 'Edison's famous horseshoe paper-filament lamp of 1870. Copyright 1904 by William J. Hammer.' Alterations: cropped out caption and frame, increased brightness slightly.
Licensing
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File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 03:24, 4 January 2017 | 737 × 388 (84 KB) | 127.0.0.1 (talk) | Photo of early paper filament incandescent electric light bulbs invented by Thomas Alva Edison in 1879. The caption read: 'Edison's famous horseshoe paper-filament lamp of 1870. Copyright 1904 by William J. Hammer.' Alterations: cropped out caption and frame, increased brightness slightly. |
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