| All Patents in class 403/303 |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 17,236 | May 05, 1857 | W. Sellers, C. Sellers | Improvement in couplings for shafting | industrial machine shaft couplings |
| 64,292 | Apr. 30, 1867 | J.W. Douglas | Improvement in hose-couplings | household hand pumps |
| 318,975 | Jun. 02, 1885 | C.E. Gee | Shaft-coupling | industrial machine shaft couplings |
| 320,439 | Jun. 16, 1885 | E.D. Mackintosh | Shaft-couplings | industrial machine mechanisms |
| 1,954,048 | Apr. 10, 1934 | S.C. Moon, R.K. Jeffery | Tool Holder | drilling and boring tool holders |
