| Patents for Curtis Albert Sparkes |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| GB-830,432 | Mar. 16, 1960 | C.A. Sparkes | Improvements in large revolving work tables of horizontal boring machines and other machine tools | horizontal boring mills |
| GB-849,239 | Sep. 21, 1960 | C.A. Sparkes | Improvements related to work tables of horizontal boring machines | horizontal boring mills |
| GB-900,717 | Jul. 11, 1962 | C.A. Sparkes | Improvements in horizontal boring machine tools | horizontal boring mills |
| GB-944,689 | Dec. 18, 1963 | C.A. Sparkes | Improvements in large revolving work tables of horizontal boring machines and other machine tools | horizontal boring mills |
| GB-966,736 | Aug. 12, 1964 | C.A. Sparkes | Improvements in revolving work tables of horizontal boring machines and other machine tools | horizontal boring mills |
| GB-966,737 | Aug. 12, 1964 | C.A. Sparkes | Improvements in revolving work tables of horizontal boring machines and other machine tools | horizontal boring mills |
| GB-1,022,801 | Mar. 16, 1966 | C.A. Sparkes | An improved optical system for setting worktables of machine tools | horizontal boring mills |
| GB-1,023,069 | Mar. 16, 1966 | C.A. Sparkes | Improvements in and relating to machine tool spindles | horizontal boring mills |
| GB-1,023,096 | Mar. 16, 1966 | C.A. Sparkes | Improvements in and relating to manually operable control devices | horizontal boring mills |
| GB-1,128,612 | Sep. 25, 1968 | C.A. Sparkes | Improvements in horizontal boring machine tools | horizontal boring mills |
| GB-1,144,631 | Mar. 05, 1969 | C.A. Sparkes | Improvements in or relating to machine tools | horizontal boring mills |
| GB-1,144,632 | Mar. 05, 1969 | C.A. Sparkes | Improvements in or relating to machine tools | horizontal boring mills |
| GB-1,246,967 | Sep. 22, 1971 | H.R. Zadow, C.A. Sparkes | Improvements in or relating to tool-holding mechanism for machine tools | horizontal boring mills |
