| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Charles J. Gooch | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 186,638 | Jan. 23, 1877 | W. Thomson | Compass needle combines ultra-low friction with high polar moment of inertia. | ||
| 210,068 | Nov. 19, 1878 | W. Thomson | Navigational instrument for use with the mariners' compass | ||
| 210,069 | Nov. 19, 1878 | W. Thomson | Magnetic adjustment mechanism added to the mariners' compass | ||