| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 33/431 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 45,535 | Dec. 20, 1864 | H. Taylor | Parallel Rule with Protractor | rules | |
| 48,454 | Jun. 27, 1865 | S.L. Simpson | Improvement in Rulers | rules | |
| 85,991 | Jan. 19, 1869 | R.A. Briggs | Improvements in combined rule and protractor | ||
| 102,957 | May 10, 1870 | D.M. Moore | Universal Square | miter squares | |