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| All Patents in class 125/30.01 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 172,589 | Jan. 25, 1876 | H.D. Stover | Improvement in machines for cutting precious stones | |
 | 175,390 | Mar. 28, 1876 | H.D. Stover | Improvement in machines for diamond-cutting machines | |
| 362,789 | May 10, 1887 | W.H. Sawyer | Device for Jeweling Wire Drawing Dies | ||
| 445,983 | Feb. 10, 1891 | W.B. Dwight | Machine for Cutting or Slicing Minerals | ||
 | 2,352,132 | Jun. 20, 1944 | C.E. Southwell | Double -Acting Planer Head | |
 | 2,627,261 | Feb. 03, 1953 | N.H. Nye, E.L. Cox | Lapidary Drill | |