| All Patents in class 72/78 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 9,398X | Feb. 13, 1836 | W. Keane | Improvement in Machines for Cutting Wood and Other Screws | screw machines |
| RE2 | Apr. 16, 1838 | W. Keane | Improvement in Machines for Cutting Wood and Other Screws | screw machines |
| 12,669 | Apr. 10, 1855 | S.M. Cate | Die and Stock for Ornamenting Metal Tubes | metal lathe accessories and attachments |
| 390,899 | Oct. 09, 1888 | C.D. Wainwright, R.F. Pratt | Machine for Corrugating Wrought Metal Tubes | tube corrugating machines |
| 3,130,611 | Apr. 28, 1964 | O.A. Specht | Swaging Machine | metal swaging machines |
| 3,191,415 | Jun. 29, 1965 | C.L. Sporck | Metal Working | tube making machines |
