| Patents for Frederick Holz |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 432,621 | Jul. 22, 1890 | F. Holz | Milling Machine | indexers and dividers |
| 439,154 | Oct. 28, 1890 | F. Holz | Cutter Grinder | milling machines |
| 513,683 | Jan. 30, 1894 | F. Holz | Milling Machine | milling machines |
| 554,422 | Feb. 11, 1896 | F. Holz | Milling Machine | milling machines |
| 554,423 | Feb. 11, 1896 | F. Holz | Milling Machine | milling machines |
| 658,777 | Oct. 02, 1900 | F. Holz | Milling Machine | milling machines |
| 774,843 | Nov. 15, 1904 | F. Holz | Feed Gearing for Machine Tools | metalworking machine mechanisms |
