| Patents for Wilson Mechanical Instrument Division, American Chain & Cable Co., Inc. |
Patents 1 -
7
of 7
      |
| Picture | Number | Date | Patentee | Title |
 | 1,516,207 | Nov. 18, 1924 | S.P. Rockwell | Hardness-testing machine |
 | 1,516,208 | Nov. 18, 1924 | S.P. Rockwell | Hardness-testing machine |
 | 1,885,972 | Nov. 01, 1932 | C.H. Wilson | Hardness testing gauge |
| | CA-336,012 | Sep. 26, 1933 | C.H. Wilson | Hardness tester |
| | CA-395,516 | Mar. 25, 1941 | C.H. Wilson | Hardness testing device |
 | 2,361,441 | Oct. 31, 1944 | C.H. Wilson | Hardness testing indenter |
 | 2,362,941 | Nov. 14, 1944 | D.F. Sklar | Penetrator chuck retainer |
