| Patents for Frank Koster |
Patents 1 -
5
of 5
      |
| Picture | Number | Date | Patentee | Title |
 | 2,704,124 | Mar. 15, 1955 | F. Koster | Apparatus for Notching Slots in the Ends of Tubing |
| | 2,776,003 | Jan. 01, 1957 | F. Koster | Method and Apparatus for Cutting Tubing |
| | 3,005,369 | Oct. 24, 1961 | F. Koster | Method of Notching and Shearing the Ends of Tubing in the Preparation of Tubular Assemblies |
| | 3,073,195 | Jan. 15, 1963 | F. Koster | Apparatus for Notching the Ends of Tubing in the Preparation of Tubular Assemblies |
| | CA-664,482 | Jun. 04, 1963 | F. Koster | Method and Apparatus for Notching the Ends of Tubing in the Preparation of Tubular Assemblies |
