| Patents Granted on 1873-05-13 |
Patents 1 -
15
of 18
      |
| Number | Date | Patentee | Title | Type |
| RE5,401 | May 13, 1873 | J.S. Elliott | Improvement in machines for forming building-blocks | |
| RE5,407 | May 13, 1873 | J.P. Collins | Water Wheels | water wheels |
| RE5,408 | May 13, 1873 | H.K. Jones | Improvement in Machines for Graduating Carpenters' Squares | tool making machines |
| 138,742 | May 13, 1873 | J. Eisenmann | Machines for Boring Hubs | wheelwright |
| 138,762 | May 13, 1873 | J.J. Ralya | Improvement in stave-jointers | barrel making machines |
| 138,789 | May 13, 1873 | D.M. Church | Improvement in machines for pointing the journals of bobbins | stick pointing machines |
| 138,790 | May 13, 1873 | G.B. Cowles | Improvement in Plumb Bobs | plumb bobs |
| 138,808 | May 13, 1873 | H. Lawrence | Improvement in scroll-sawing machines | scrollsaws |
| 138,815 | May 13, 1873 | I.L. Penney | Improvement in lock-cutting machines | hoop making machines |
| 138,828 | May 13, 1873 | G. Westinghouse, Jr. | Improvement in rotary valves for steam-engines | steam engines |
| 138,855 | May 13, 1873 | S.C. Carter | Electro-Magnetic Motors | electric motors |
| 138,871 | May 13, 1873 | R. Eickemeyer | Improvement in hat-presses | milliner |
| 138,877 | May 13, 1873 | S. French, R.D. Chase | Improvement in copy-holders | |
| 138,901 | May 13, 1873 | J.W. Leslie, G.R. Smith | Improvement in veneer-cutting machines | veneer machines |
| 138,932 | May 13, 1873 | H.F. Read | Improvement in Wrenches | quick adjust wrenches |
