| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Asa Spencer | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 561X | Jun. 08, 1804 | A. Spencer | Improvement in making thimbles | ||
| 1,660X | Feb. 07, 1812 | A. Spencer | Ruling machine | ruling machines | |