| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 251/63 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 2,020,773 | Nov. 12, 1935 | H. Ernst | Deflection Variator | metalworking machine mechanisms | |
| 2,606,571 | Aug. 12, 1952 | W. Ernst | Multipurpose control valve | hydraulic apparatus | |