| All Patents in class 200 |
Patents 1 -
15
of 397
      |
| Number | Date | Patentee | Title | Type |
| RE200 | May 13, 1851 | G.H. Corliss | Improvements in Cut-Off and Working the Valves of Steam Engines | steam engines |
| 14,561 | Apr. 01, 1856 | G.G. Griswold | Method of Manufacturing Augers | making drills and augers |
| 15,467 | Aug. 05, 1856 | T.R. Bailey | Hub mortiser | mortising machines |
| 21,740 | Oct. 12, 1858 | G.J. Colby | Machine for peeling willow | debarking machines |
| 144,098 | Oct. 28, 1873 | J.C. Hoadley | Governors for Steam-Engines | steam engine governors |
| RE5,805 | Mar. 24, 1874 | J. Mutty | Improvement in feed-rollers to circular saws | tablesaws |
| 244,331 | Jul. 12, 1881 | W. Stanley, Jr. | Circuit-closer for incandescent lamps | electric switches |
| 275,042 | Apr. 03, 1883 | I.W. Heysinger | Suspension Wrench For Gas and Other Cocks | wrenches |
| 275,341 | Apr. 03, 1883 | S.B. McLane | Tool For Grasping and Holding | hand vises |
| 287,578 | Oct. 30, 1883 | G.H. Reynolds | Gas Engine | gas and gasoline engines |
| 315,180 | Apr. 07, 1885 | F.J. Sprague | Electro Dynamic Motor | electric motors |
| 320,630 | Jun. 23, 1885 | L. Daft | Electric Switch | electric switches |
| 324,635 | Aug. 18, 1885 | M. Bacon | Electrical indicator | |
| 324,894 | Aug. 25, 1885 | W. Stanley, Jr. | Socket for incandescent electric lamps | electric arc lamps |
| 345,596 | Jul. 13, 1886 | E.J. Lenior | Gas Engine | gas and gasoline engines |
