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Summary
| Description |
English: From United States Patent and Trademark Office, 1,155,243 |
| Date | |
| Source | https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/1155243 |
| Author | United States Patent and Trademark Office |
Licensing
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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
 Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:04, 20 April 2023 | | 612 × 517 (101 KB) | EmilMoersch | Better crop |
| 21:31, 22 March 2023 |  | 616 × 806 (91 KB) | EmilMoersch | different crop | |
| 23:16, 18 March 2023 |  | 511 × 761 (84 KB) | EmilMoersch | Uploaded a work by United States Patent and Trademark Office from https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/1155243 with UploadWizard |
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