| Patents for Wilson Mechanical Instrument Division, American Chain & Cable Co., Inc. |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 1,516,207 | Nov. 18, 1924 | S.P. Rockwell | Hardness-testing machine | metal hardness testers |
| 1,516,208 | Nov. 18, 1924 | S.P. Rockwell | Hardness-testing machine | metal hardness testers |
| 1,885,972 | Nov. 01, 1932 | C.H. Wilson | Hardness testing gauge | metal hardness testers |
| CA-336,012 | Sep. 26, 1933 | C.H. Wilson | Hardness tester | metal hardness testers |
| 2,091,995 | Sep. 07, 1937 | F. Knoop | Hardness testing device | metal hardness testers |
| CA-395,516 | Mar. 25, 1941 | C.H. Wilson | Hardness testing device | metal hardness testers |
| 2,361,441 | Oct. 31, 1944 | C.H. Wilson | Hardness testing indenter | metal hardness testers |
| 2,362,941 | Nov. 14, 1944 | D.F. Sklar | Penetrator chuck retainer | metal hardness testers |
| 2,722,831 | Nov. 08, 1955 | C.W. Smith | Hardness testers | metal hardness testers |
