![]() | |||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for H. Knippenberg | |||||
| Number | Date | Patentee | Title | Type | |
| 154,000 | Aug. 11, 1874 | E.C. Atkins | Improvement in Saw-Handles | crosscut saw handles | |
| 156,967 | Nov. 17, 1874 | E.C. Atkins | Improvement in Saw Gages | saw gauges | |
| 218,914 | Aug. 26, 1879 | E.C. Atkins, | Improvement in Crosscut-Saw Handles | ||