| Patents for N. C. Gridley |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 61,208 | Jan. 15, 1867 | A.C. Kasson | Improvement in augers | auger bits |
| RE2,551 | Apr. 09, 1867 | N.C. Gridley, A.C. Kasson | Improvement in Augers | auger bits |
| 117,061 | Jul. 18, 1871 | J.H. Foster | Improvement in packing-boxes | |
| 117,340 | Jul. 25, 1871 | A.E. Smith | Improvement in sawing-machines | human powered machines |
| 119,831 | Oct. 10, 1871 | G.W. Miltimore, E. Doty | Improvement in railway-car axles | railroad car axles |
| 157,568 | Dec. 08, 1874 | E. Beard | Improvement in box-nailing machines | nailing machines |
| 524,952 | Aug. 21, 1894 | E.C. Phillips | Bit With Replaceable Wood-Screw Lead | drill bits |
| 627,489 | Jun. 27, 1899 | K.H. Ekstrand | Holder For Preserving Jars | jar wrenches |
