| All Patents in class 470/188 |
Patents 16 -
25
of 25
      |
| Number | Date | Patentee | Title | Type |
| 1,527,185 | Feb. 24, 1925 | L.S. Hall | Pipe-threading machine | pipe threading machines |
| 1,576,652 | Mar. 16, 1926 | L.S. Hall | Pipe Threading Machine | pipe threading machines |
| 1,797,422 | Mar. 24, 1931 | J.V. Jardine | Pipe-threading apparatus | |
| 1,936,112 | Nov. 21, 1933 | J.V. Jardine | Pipe threading apparatus | |
| 2,017,764 | Oct. 15, 1935 | S.W. Mathias | Threading Machine | metal threading machines |
| 2,387,294 | Oct. 23, 1945 | H. Davies, C.A. Reimschissel | Thread-Cutting Mechanism | tap and die holders |
| 2,583,094 | Jan. 22, 1952 | A. Girz | Taper threading machine | pipe threading machines |
| 2,746,066 | May 22, 1956 | P.A. White, R.R. Finn | Collapsible Threading Die for Selectively Cutting Straight or Taper Threads | taps and dies |
| 2,940,093 | Jun. 14, 1960 | R.B. Pealer | Drive Release for Geared Threader | pipe threading machines |
| 3,052,900 | Sep. 11, 1962 | H.H. van der Velden | Thread Length Control Device for Pipe Threaders | pipe threading machines |
