Judson_clasp_locker_patent_1893.png (387 × 416 pixels, file size: 45 KB, MIME type: image/png)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 16:28, 14 November 2008 | ![]() | 387 × 416 (45 KB) | Doug Coldwell | {{Information |Description={{en|1=Whitcomb Judson "clasp locker" patent 1893 - precurser to the modern zipper.}} |Source=http://www.uh.edu/engines/oldzip.jpg |Author=United States Patent Office |Date=August 29, 1893 |Permission=public domain (age) |other_ |
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