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| All Patents in class 269/109 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 177,605 | May 16, 1876 | A. Wieting | Improvement in picture-frame clamps | |
| 334,435 | Jan. 19, 1886 | G.R. Hammond | Miter Frame Clamp | ||
| 705,197 | Jul. 22, 1902 | C.W. Blood | Box-setting-up machine | ||
| 758,195 | Apr. 26, 1904 | M.C. Schweinert | Machine for Contracting Ferrules | ||
 | 840,777 | Jan. 08, 1907 | C.W. Lawson | Frame-clamp | |
 | 1,342,891 | Jun. 08, 1920 | O. Bergstrom | Quick-acting frame-clamping machine | |