![]() | |||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Stanley P. Rockwell | |||||
| Number | Date | Patentee | Title | Type | |
| 1,294,171 | Feb. 11, 1919 | S.P. Rockwell, H.M. Rockwell | Hardness-tester | metal hardness testers | |
| 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 | |
| 1,716,796 | Jun. 11, 1929 | S.P. Rockwell | Dilatometer | measuring tools | |
| 1,864,149 | Jun. 21, 1932 | S.P. Rockwell | Agitator for hardening baths | metal hardening | |