| All Patents in class 474/3 |
Patents 16 -
21
of 21
      |
| Number | Date | Patentee | Title | Type |
| 775,372 | Nov. 22, 1904 | G. Langen | Counter-shaft with changeable speed | metalworking variable speed mechanisms |
| 826,476 | Jul. 17, 1906 | D.L. Chandler | Planer | metal planers |
| 917,026 | Apr. 06, 1909 | R.P. Smith, G.E. Drum | Reversing mechanism for dyeing-machines | specialty machines |
| 962,842 | Jun. 28, 1910 | H.W. Hunt | Power Transmitting Device | metalworking power transmission |
| 990,421 | Apr. 25, 1911 | G.H. Benzon, Jr. | Belt Driving Mechanism for Reciprocating Parts of Machines | metal planers |
| 1,483,901 | Feb. 19, 1924 | A.R. McCann | Variable Speed Drive | metal planers |
