| Patents for Frank Koster |
Patents 1 -
5
of 5
      |
| Number | Title | Classification(s) |
| 2,704,124 | Apparatus for Notching Slots in the Ends of Tubing | 83/190 |
| 2,776,003 | Method and Apparatus for Cutting Tubing | 83/188, 83/54, 83/56, 83/636 |
| 3,005,369 | Method of Notching and Shearing the Ends of Tubing in the Preparation of Tubular Assemblies | 285/132.1, 83/191, 83/40, 83/683, 83/694 |
| 3,073,195 | Apparatus for Notching the Ends of Tubing in the Preparation of Tubular Assemblies | 83/191, 83/581, 83/636, 83/683, 83/694 |
| CA-664,482 | Method and Apparatus for Notching the Ends of Tubing in the Preparation of Tubular Assemblies | |
