File:Clausen-telephone-switchboard-plug-patent.png
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Size of this preview: 357 × 599 pixels. Other resolutions: 286 × 480 pixels | 1,282 × 2,152 pixels.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 11:21, 15 December 2023 | 1,282 × 2,152 (540 KB) | imagescommonswiki>Em3rgent0rdr | Uploaded a work by Henry P. Clausen from https://patents.google.com/patent/US711556/en with UploadWizard |
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- File:Clausen-telephone-switchboard-plug-patent.png from Wikimedia Commons
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