File:Arthur William Chapman Apparatus.png
![File:Arthur William Chapman Apparatus.png](http://upload.wikimedia.org/wikipedia/commons/thumb/6/62/Arthur_William_Chapman_Apparatus.png/355px-Arthur_William_Chapman_Apparatus.png)
Size of this preview: 355 × 599 pixels. Other resolutions: 142 × 240 pixels | 284 × 480 pixels | 455 × 768 pixels | 606 × 1,024 pixels | 1,641 × 2,770 pixels.
Original file (1,641 × 2,770 pixels, file size: 75 KB, MIME type: image/png)
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 16:05, 21 August 2023 | ![]() | 1,641 × 2,770 (75 KB) | Obscure2020 | Extracted original image from PDF source using Inkscape. Re-cropped using GIMP. Then optimized with OxiPNG and ZopfliPNG. |
09:39, 11 August 2020 | ![]() | 885 × 1,455 (115 KB) | Malev | Uploaded a work by Arthur William Chapman from https://patentimages.storage.googleapis.com/64/73/3c/d4dcbcc33fa133/US2106994.pdf with UploadWizard |
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