| Patents for Frank Hirsch |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 182,286 | Sep. 19, 1876 | W.E. Plummer | Saw-table for making packing boxes | box making machines |
| 192,623 | Jul. 03, 1877 | C. Hammelmann | Improvement in mechanical movements for operating blowers in forges | blacksmith |
| 196,742 | Nov. 06, 1877 | F. Collignon | Lubricator | steam engine lubricators |
| 203,496 | May 07, 1878 | G.W. Phillipi | Bung-Wrench | wrenches |
| 209,599 | Nov. 05, 1878 | C.A. Babcock | Combination Implement | combination tools |
| 230,420 | Jul. 27, 1880 | M.W. Kahle | Combined Calipers & Scriber | calipers |
| 231,331 | Aug. 17, 1880 | F. Kraengel | Adjustable Frog for Plane Cutter Adjustments | plane throat adjustments |
| 231,332 | Aug. 17, 1880 | F. Kraengel | Nail-Extractor | nail extractors |
| 250,080 | Nov. 29, 1881 | F. Kraengel | Spirit Level | inclinometers |
