| Patents for P. M. Hulbert |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 383,334 | May 22, 1888 | J.D. Abbott | Improvements in Vise-Wrenches | axle nut wrenches |
| 397,114 | Feb. 05, 1889 | N.H. Dolsen | Machine for removing bark from trees | debarking machines |
| 405,310 | Jun. 18, 1889 | J. Harley | Saw-table gage | tablesaw accessories |
| CA-32,878 | Nov. 20, 1889 | J.W. Adams | Pipe Wrench | pipe wrenches |
| 439,388 | Oct. 28, 1890 | E.S. Cushman | Wrench | axle nut wrenches |
| 439,919 | Nov. 04, 1890 | N.M. Willet | Wrench | pipe jaw attachments for wrenches |
| 453,820 | Jun. 09, 1891 | C.E. Pickens | Wrench | quick adjust wrenches |
