File:Berek DE343086C (Elmar, 1920).svg
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Summary
| Description |
English: Leitz Elmar lens, designed by Berek in 1920. Redrawn from DE Pat. 343,086. |
| Date | |
| Source | Own work |
| Author | Mliu92 |
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:18, 18 May 2023 | | 350 × 350 (2 KB) | Mliu92 | Uploaded own work with UploadWizard |
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