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Patents for Mahlon Gregg | |||||
Number | Date | Patentee | Title | Type | |
1,895 | Dec. 10, 1840 | M. Gregg | Machine for cutting round tenons and for cutting or turning other articles of wood into a cylindrical form | hollow bits | |
19,292 | Feb. 09, 1858 | M. Gregg | Machine for cutting tenons on spokes | tenoning machines | |
AI279 | May 15, 1860 | M. Gregg | Hollow Auger | hollow bits | |
92,603 | Jul. 13, 1869 | M. Gregg | Improvement in Turbine Water-Wheels | ||
109,891 | Dec. 06, 1870 | M. Gregg | Improvement in water-wheels | water wheels |