| All Patents in class 74/130 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 339,547 | Apr. 06, 1886 | C. Hammelmann | Mechanical Movement | forge blowers |
| 369,177 | Aug. 30, 1887 | C. Hammelmann | Clutching Device for Forges | blacksmith |
| 662,631 | Nov. 27, 1900 | H.B. Steele | Counterbalance for Explosion-Engines | attachments |
| 719,703 | Feb. 03, 1903 | N.R. Thibert | Bit-stock | |
| 1,214,884 | Feb. 06, 1917 | G.J. Blum | Power hacksaw | metal sawing machines |
| 2,902,889 | Sep. 08, 1959 | H.W. Trechsel | Hydraulic Turret Index | turret lathes |
| 2,924,127 | Feb. 09, 1960 | C.H. Johnson | Indexing Apparatus | turret lathes |
| 3,150,545 | Sep. 29, 1964 | E.C. Raehrs | Indexing Mechanism | indexers and dividers |
