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| Patents for Alexander Saunders | |||||
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| Number | Date | Patentee | Title | Type | |
| 154,346 | Aug. 25, 1874 | A. Saunders | Screw Cutting Dies | taps and dies | |
| 176,815 | May 02, 1876 | A. Saunders | Pipe Cutter | pipe cutters | |
| 235,902 | Dec. 28, 1880 | A. Saunders | Nipple Chuck | chucks | |
| 368,012 | Aug. 09, 1887 | A. Saunders | Machine for Cutting Pipes or Rods | pipe cutting machines | |
| 372,490 | Nov. 01, 1887 | A. Saunders | Machine for Cutting and Screw Threading Tubes, &c. | pipe threading machines | |
| 406,857 | Jul. 09, 1889 | A. Saunders | Screw Cutting Die | pipe threading machines | |