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Patents for Charles A. Herbert | |||||
Number | Date | Patentee | Title | Type | |
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 |