| Patents Granted on 1893-03-21 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 493,683 | Mar. 21, 1893 | G.A. Colnon | Beam Calipers | measurement gauges |
| 493,737 | Mar. 21, 1893 | J.A. Smith | Pipe Wrench | wrench jaw components |
| 493,738 | Mar. 21, 1893 | A. Streit | Pulley-lathe | metal lathes |
| 493,807 | Mar. 21, 1893 | O.J. Beale | Lathe Attachment | metal lathe accessories and attachments |
| 493,829 | Mar. 21, 1893 | P. Mandigo | Wrench | quick adjust wrenches |
| 493,857 | Mar. 21, 1893 | C.E. Billings | Drill-chuck | drill press chucks |
| 493,874 | Mar. 21, 1893 | J. O'Brien | Power Hammer | power hammers |
| 493,903 | Mar. 21, 1893 | G.W. Wright | Blockplane Lateral Adjuster | plane cutter adjustments |
| 493,989 | Mar. 21, 1893 | E.G. Duryea | Carpenter's Hammer | hammers |
