| All Patents in class 91/191 |
Patents 1 -
10
of 10
      |
| Number | Date | Patentee | Title | Type |
| 13,320 | Jul. 24, 1855 | H.R. Worthington | Water-meter | water meters |
| 116,131 | Jun. 20, 1871 | H.R. Worthington | Improvement in steam pumping-engines | steam pumping engines |
| 181,548 | Aug. 29, 1876 | H.R. Worthington | Improvement in compound engines | steam pumping engines |
| 278,133 | May 22, 1883 | W.H. Guild | Duplex Direct Acting Engine | steam engines |
| 358,591 | Mar. 01, 1887 | E.E. Clark | Vertical Compound Balanced Duplex Pumping Engine | steam pumps |
| 655,232 | Aug. 07, 1900 | C.L. Heisler | Pumping Engine | steam pumping engines |
| 2,043,420 | Jun. 09, 1936 | E.G. Roehm | Broaching Machine | broaching machines |
| 2,365,040 | Dec. 12, 1944 | A.L. Hamelberg, W.D. Averill | Broaching Machine | broaching machines |
| 2,500,933 | Mar. 21, 1950 | L.A. Dailey | Control device for machine tools | wood drilling and boring |
| 2,709,395 | May 31, 1955 | E.C. Rogers, C.A. Boehm | Broaching Machine | broaching machines |
