| Patents for Will. A. Barr |
Patents 16 -
26
of 26
      |
| Number | Date | Patentee | Title | Type |
| 689,135 | Dec. 17, 1901 | E.F. Shaw | Knife Handle | |
| 693,256 | Feb. 11, 1902 | Z.T. Furbish | Chuck | drill chucks |
| 701,195 | May 27, 1902 | Z.T. Furbish | Means of Securing Handles or Rests to Tools | screwdriver handles |
| 719,782 | Feb. 03, 1903 | Z.T. Furbish | Pliers | pliers |
| 719,783 | Feb. 03, 1903 | Z.T. Furbish | Calipers | dividers |
| 750,182 | Jan. 19, 1904 | Z.T. Furbish | Reversible Screw-Driver | screwdriver mechanisms |
| 750,183 | Jan. 19, 1904 | Z.T. Furbish | Ratchet Screwdriver | ratcheting screwdrivers |
| 759,111 | May 03, 1904 | I.H. Johnson, Jr. | Variable Speed Gear for Motor Diven Lathes or Other Tools | metalworking speed changing mechanisms |
| 807,274 | Dec. 12, 1905 | I.H. Johnson, Jr. | Gearing for Lathes or Other Tools | metalworking machine mechanisms |
| 814,528 | Mar. 06, 1906 | Z.T. Furbish | Ratchet Screwdriver | ratcheting screwdrivers |
| 858,131 | Jun. 25, 1907 | H.J. Aichele | Cap for Magazine Tools | screwdriver handles |
