File:Battery-patent-US439151.png
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Summary
| Description |
English: Dry cell battery by Wilhelm Louis Frederik Hellesen. US patent 439151 |
| Date | |
| Source | https://www.google.com/patents/US439151 |
| Author | US Patent Office, Wilhelm Louis Frederik Hellesen, dead 1892. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 01:34, 26 January 2018 | | 875 × 1,329 (58 KB) | wikimediacommons>Chlor | User created page with UploadWizard |
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