File:Bertele-Zeiss Biogon (1934).svg
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Summary
| Description |
English: Lens design patented by Ludwig Bertele, later sold as Zeiss Biogon. Redrawn from geometry listed in US Patent 2,084,309. |
| Date | |
| Source | Own work |
| Author | Mliu92 |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:56, 8 November 2018 | | 1,100 × 1,000 (3 KB) | Mliu92 | User created page with UploadWizard |
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