| Patents for Clarence Johnson |
Patents 1 -
10
of 22
      |
| Picture | Number | Date | Patentee | Title |
 | 2,259,472 | Oct. 21, 1941 | C. Johnson | Duplicator for machine tools |
 | CA-405,118 | Jun. 02, 1942 | C. Johnson | Duplicator for machine tools |
 | CA-422,198 | Aug. 22, 1944 | C. Johnson | Duplicator for machine tools |
 | 2,372,426 | Mar. 27, 1945 | C. Johnson | Duplicator for machine tools |
 | 2,372,427 | Mar. 27, 1945 | C. Johnson | Machine tool control |
| | CA-427,959 | Jul. 23, 1945 | C. Johnson | Machine tool duplicator |
 | 2,399,806 | May 07, 1946 | C. Johnson | Machine-tool control |
| | CA-435,928 | Jul. 23, 1946 | C. Johnson | Machine tool duplicator |
 | 2,422,681 | Jun. 24, 1947 | C. Johnson | Machine tool control |
 | 2,434,853 | Jan. 20, 1948 | C. Johnson | Machine tool control |
