File:Edison-1266780.gif
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Edison's 1918 patent of a insulated battery box (1266780)
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:13, 12 July 2011 | | 605 × 833 (29 KB) | Ron Broberg (talk | contribs) | |
| 22:09, 12 July 2011 |  | 747 × 867 (36 KB) | Ron Broberg (talk | contribs) | Edison's 1918 patent of a insulated battery box (1266780) |
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