| Patents for Charles Hammelmann |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 192,623 | Jul. 03, 1877 | C. Hammelmann | Improvement in mechanical movements for operating blowers in forges | blacksmith |
| 225,010 | Mar. 02, 1880 | C. Hammelmann | Velocipede | bicycles and tricycles |
| 225,702 | Mar. 23, 1880 | C. Hammelmann | Mechanical movement | blacksmith |
| 252,103 | Jan. 10, 1882 | C. Hammelmann | Portable Forge | blacksmith |
| 270,897 | Jan. 23, 1883 | C. Hammelmann | Fan-blower | blacksmith |
| 282,076 | Jul. 31, 1883 | C. Hammelmann | Mechanical movement for operating portable forges, blowers, &c. | blacksmith |
| 330,234 | Nov. 10, 1885 | C. Hammelmann | Self-lubricating pulley | woodworking power transmission |
| 339,547 | Apr. 06, 1886 | C. Hammelmann | Mechanical Movement | forge blowers |
| 369,177 | Aug. 30, 1887 | C. Hammelmann | Clutching Device for Forges | blacksmith |
| 410,161 | Sep. 03, 1889 | C. Hammelmann | Portable forge | blacksmith |
| 427,860 | May 13, 1890 | C. Hammelmann | Planer-matcher | wood planers |
| 473,923 | May 03, 1892 | C. Hammelmann | Horseshoe | horseshoes |
| 633,314 | Sep. 19, 1899 | C. Hammelmann | Portable Forge | blacksmith |
