| Patents for Francis H. Richards |
Patents 46 -
60
of 83
      |
| Number | Date | Patentee | Title | Type |
| 452,053 | May 12, 1891 | F.H. Richards | Multiple drilling-machine | multiple spindle drill presses |
| 452,880 | May 26, 1891 | J.A. Traut | Method of making suspender buckles | |
| 460,692 | Oct. 06, 1891 | F.H. Richards | Drilling-machine | drill presses |
| D21,400 | Mar. 15, 1892 | J.A. Traut | Design for a clasp | |
| 470,777 | Mar. 15, 1892 | C.E. Billings | Multiblade Screwdriver | screwdriver mechanisms |
| 471,259 | Mar. 22, 1892 | J.A. Traut | Suspender buckle case | |
| D21,517 | May 03, 1892 | J.A. Traut | Buckle | |
| 478,772 | Jul. 12, 1892 | J.A. Traut | Trousers Guard | |
| 480,963 | Aug. 16, 1892 | F.H. Richards | Turret Mechanism for Lathes | metal lathe accessories and attachments |
| 480,964 | Aug. 16, 1892 | F.H. Richards | Turret Mechanism | metal lathe accessories and attachments |
| 482,212 | Sep. 06, 1892 | W.W. Tucker | Grinding Fixture | grinding fixtures |
| 484,673 | Oct. 18, 1892 | F.H. Richards | Clock Lathe | watchmakers lathes |
| 487,775 | Dec. 13, 1892 | F.H. Richards | Duplex feed mechanism | milling machines |
| CA-41,621 | Jan. 16, 1893 | N. Clute | Methode D'Alimentation des Chaudieres | feedwater apparatus |
| 493,409 | Mar. 14, 1893 | F.H. Richards | Belt Shifting Apparatus | industrial machine pulleys and belt drive mechanisms |
