| Patents for Rockford Machine Tool Co. |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 2,167,890 | Aug. 01, 1939 | P.S. Jackson | Hydraulic Machine Tool | hydraulic apparatus |
| 2,924,239 | Feb. 09, 1960 | S.A. Bjorklund | Servo Valve Having Helically Arranged Metering Parts | metalworking machine mechanisms |
| 2,931,684 | Apr. 05, 1960 | E.W. Johnson | Machine Tool Ways | metalworking machine mechanisms |
| 2,967,444 | Jan. 10, 1961 | R.S. Litterst, E.E. Hallberg | Thread Rolling Machines | thread rolling machines |
| 3,152,514 | Oct. 13, 1964 | P.E. Olson | Tool Lifter for Planer or the Like | metal planer accessories |
