All Patents in class 408/213 |
Patents 31 -
45
of 81
|
Number | Date | Patentee | Title | Type |
270,977 | Jan. 23, 1883 | I.T. Payne | Auger | auger bits |
278,539 | May 29, 1883 | H. Rugg, H. Halligan | Auger | auger bits |
283,040 | Aug. 14, 1883 | J. Swan | Auger-Bit | auger bits |
283,705 | Aug. 21, 1883 | H.E. Fuller | Boring-Bit | auger bits |
290,812 | Dec. 25, 1883 | J. Swan | Auger-Bit | auger bits |
306,907 | Oct. 21, 1884 | W.M. Dimitt | Auger Bit | drill bits |
309,868 | Dec. 30, 1884 | H. Olson | Auger | auger bits |
313,735 | Mar. 10, 1885 | G.H. Hill | Expansible bit | adjustable drill bits |
320,097 | Jun. 16, 1885 | J. Swan | Auger | auger bits |
323,454 | Aug. 04, 1885 | F. Shailer | Auger-Bit | auger bits |
329,660 | Nov. 03, 1885 | H.S. Lord | Auger-Bit | auger bits |
360,990 | Apr. 12, 1887 | C.E. Billings | Expansive bit | adjustable drill bits |
361,522 | Apr. 19, 1887 | C.H. Irwin | Auger Bit | drill bits |
374,432 | Dec. 06, 1887 | C.A. Simmons | Boring-Tool | auger bits |
387,448 | Aug. 07, 1888 | H.W. Richards | Auger | auger bits |