| Patents for Henry Drury |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 227,962 | May 25, 1880 | S. Darling | Dividing Engine | |
| 233,488 | Oct. 19, 1880 | S. Darling | Art of Manufacturing Mathematical Instruments | |
| 454,958 | Jun. 30, 1891 | E.A. Walker | Belt-Shifter for Planing-Machines | metal planers |
| 454,959 | Jun. 30, 1891 | E.A. Walker | Feed-Screw and Nut | metal planers |
| 454,960 | Jun. 30, 1891 | E.A. Walker | Frictional Feed-Clutch | metal planers |
| CA-54,773 | Jan. 27, 1897 | M. Wenger | Wrench | quick adjust wrenches |
| 618,859 | Feb. 07, 1899 | J. Gardiner | Wrench | screw adjust wrenches |
| 618,899 | Feb. 07, 1899 | W.M. Norcross | Wrench | quick adjust wrenches |
| 624,535 | May 09, 1899 | H.W. Powel | Device for Gaging & Positioning Tools for Slide Rest Lathes | special purpose gauges |
