| Patents for Clarence Johnson |
Patents 1 -
15
of 22
      |
| Number | Date | Patentee | Title | Type |
| 2,259,472 | Oct. 21, 1941 | C. Johnson | Duplicator for machine tools | milling machine accessories |
| CA-405,118 | Jun. 02, 1942 | C. Johnson | Duplicator for machine tools | milling machine accessories |
| CA-422,198 | Aug. 22, 1944 | C. Johnson | Duplicator for machine tools | milling machine accessories |
| 2,372,426 | Mar. 27, 1945 | C. Johnson | Duplicator for machine tools | milling machine accessories |
| 2,372,427 | Mar. 27, 1945 | C. Johnson | Machine tool control | milling machine accessories |
| CA-427,959 | Jul. 23, 1945 | C. Johnson | Machine tool duplicator | milling machine accessories |
| 2,399,806 | May 07, 1946 | C. Johnson | Machine-tool control | milling machine accessories |
| CA-435,928 | Jul. 23, 1946 | C. Johnson | Machine tool duplicator | milling machine accessories |
| 2,422,681 | Jun. 24, 1947 | C. Johnson | Machine tool control | milling machine accessories |
| 2,434,853 | Jan. 20, 1948 | C. Johnson | Machine tool control | milling machine accessories |
| GB-600,193 | Apr. 02, 1948 | C. Johnson | Improvements in and relating to metal cutting and like copying machines | milling machine accessories |
| CA-456,325 | May 03, 1949 | C. Johnson | Control system | milling machine accessories |
| 2,475,326 | Jul. 05, 1949 | C. Johnson | Control system | milling machine accessories |
| CA-462,342 | Jan. 10, 1950 | C. Johnson | Machine tool control | milling machine accessories |
| 2,526,361 | Oct. 17, 1950 | C. Johnson | Control valve for fluid servomotors | milling machine accessories |
