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