| Patents for William P. Hayes |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 376,235 | Jan. 10, 1888 | B.J. Coates | Machine for turning cross-head pins | metal lathe accessories and attachments |
| 390,725 | Oct. 09, 1888 | G. Van Riper | Apparatus for forming wooden scoops or shovels | specialty woodworking machines |
| 406,322 | Jul. 02, 1889 | W.M. Wilkin | Bandsaw mill | band sawmills |
| 456,560 | Jul. 28, 1891 | H.H. Fuller | Drill-press | drill presses |
| 465,558 | Dec. 22, 1891 | W. Dittrick | Pipe Tongs | pipe wrenches |
| 520,528 | May 29, 1894 | E.L. Jones | Clutch | industrial machine clutches |
