File:Johnson 1954 ice boring device patent.png
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![File:Johnson 1954 ice boring device patent.png](/media/wikipedia/commons/thumb/7/7e/Johnson_1954_ice_boring_device_patent.png/276px-Johnson_1954_ice_boring_device_patent.png)
Size of this preview: 276 × 599 pixels. Other resolutions: 110 × 240 pixels | 401 × 871 pixels.
Original file (401 × 871 pixels, file size: 105 KB, MIME type: image/png)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 02:41, 20 November 2017 | ![]() | 401 × 871 (105 KB) | Mike Christie | User created page with UploadWizard |
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