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| All Patents in class 81/4 | |||||
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| Number | Date | Patentee | Title | Type | |
| 909,759 | Jan. 12, 1909 | F.W. Crocker | Engraver's Spoon Clamp | jeweler | |
| 911,667 | Feb. 09, 1909 | A. Muehlmatt | Engraver's block | ||
| 1,009,266 | Nov. 21, 1911 | M.G. Swan | Attachment-securing means | engraver | |
| 1,024,728 | Apr. 30, 1912 | C.J. Jackson | Vise | vises | |
| 1,057,762 | Apr. 01, 1913 | A. Muehlmatt | Holder for engraving-blocks | ||
| 1,092,867 | Apr. 14, 1914 | E.B. Sellew | Auxiliary support | work holding | |
| 2,159,193 | May 23, 1939 | J.H. Williams | Vise | hand vises | |