File:US1682572-CK.png
US1682572-CK.png (129 × 18 pixels, file size: 3 KB, MIME type: image/png)
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Summary
[edit]DescriptionUS1682572-CK.png | Signature of Carl W. Keuffel. |
Date | |
Source | https://patents.google.com/patent/US1682572 |
Author | C. W. Keuffel |
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Licensing
[edit]Public domainPublic domainfalsefalse |
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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.
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Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:US1682572-CK.png |
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current | 13:29, 15 February 2024 | ![]() | 129 × 18 (3 KB) | RaboKarbakian (talk | contribs) | {{Information |Description=Signature of Carl W. Keuffel. |Source=https://patents.google.com/patent/US1682572 |Date=1925-10-15 |Author=C. W. Keuffel |Permission= |other_versions= }} {{PDF}} Category:United States patent 1682572 Category:Carl W. Keuffel == {{int:license-header}} == {{PD-US-expired}} |
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File change date and time | 13:25, 15 February 2024 |