File:Gundlach periscope 360.jpg
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| Description |
English: Gundlach periscope 360° |
| Date | |
| Source | Periscope for armoured vehicles 1936. |
| Author | Rudolf Gundlach (1892-1957) |
Licensing edit
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The text and illustrations of US patents published before March 1, 1989 are in the public domain unless the patent text contains a specific notice that portions are copyrighted. See 37 CFR 1.71(d), 37 CFR 1.84(s)
The original patent contains no such notice, so its contents are in the public domain. Note: This only applies to images published before March 1, 1989. Patents published after that date are most likely copyrighted, unless in the public domain for another reason, such as {{PD-ineligible}}. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 07:29, 3 March 2014 | | 567 × 909 (170 KB) | Grottger (talk | contribs) | User created page with UploadWizard |
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