| All Patents in class 29/DIG.093 |
Patents 1 -
9
of 9
      |
| Picture | Number | Date | Patentee | Title |
 | 70,862 | Nov. 12, 1867 | J. Kirkley | Improved nut-tapping machines |
 | 115,451 | May 30, 1871 | J.N. Durrell | Improvement in machines for tapping nuts |
 | 142,511 | Sep. 02, 1873 | S.W. Putnam, Jr. | Improvement in machines for tapping nuts |
 | 162,194 | Apr. 20, 1875 | E. Schlenker | Improvement in bolt-threading machines |
 | 406,003 | Jun. 25, 1889 | G.T. Reiss | Turret-lathe |
| | 1,635,702 | Jul. 12, 1927 | E.P. Bullard, Jr. | Cutting Compound Distribution System |
| | 1,864,307 | Jun. 21, 1932 | E.H. Johnson | Chip Remover and Water and Dust Seal for Machine Tools |
| | 2,174,984 | Oct. 03, 1939 | F.J. Lapointe | Broaching machine |
 | 2,326,638 | Aug. 10, 1943 | W.F. Groene, H.J. Siekmann | Machine tool coolant system |
