| Patents for J & S Tool Co. |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 2,366,623 | Jan. 02, 1945 | H.S. Jakobsen | Radii and Angle Dresser | |
| 2,400,826 | May 21, 1946 | H.S. Jakobsen | Universal Grinder Head | grinding machines |
| 2,431,122 | Nov. 18, 1947 | H.S. Jakobsen | Variable Volume Hydraulic Pump of the Axially Oscillating Vane Type | hydraulic pumps |
| 4,033,210 | Jul. 05, 1977 | H.F. Swenson | Live Center With Hydraulic Pressure Indicator | metal lathe accessories and attachments |
| 4,033,211 | Jul. 05, 1977 | H.F. Swenson | Replaceable flinger for live centers | metal lathe accessories and attachments |
| 4,312,513 | Jan. 26, 1982 | H.F. Swenson | Gear Holding Hydraulically Actuated Chuck | gear making machines |
| 4,431,202 | Feb. 14, 1984 | H.F. Swenson | Pivoted Jaw Members | metal lathe chucks |
