File:US2207903-drawings-page-1-drygrater.png
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 03:12, 25 March 2021 | ![]() | 2,320 × 3,408 (59 KB) | Thmazing | Uploaded a work by Monroe Boston Strause from patent files; public domain (accessed through Google) with UploadWizard |
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