| All Patents in class 137/318 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 74,961 | Feb. 25, 1868 | A. Weed | Improvement in boring-faucets | faucets |
| 184,686 | Nov. 21, 1876 | J. Miller | Machines for Tapping Pipes Under Pressure | plumber |
| 265,624 | Oct. 10, 1882 | H. Mueller | Machine For Tapping Mains | auxiliary wrenches |
| 425,480 | Apr. 15, 1890 | A.W. Meston | Champagne-tap | champagne and soda tools |
| 592,007 | Oct. 19, 1897 | S.G. Howe | Shut Off and Pipe Drilling Device | portable metal drilling machines |
| 649,173 | May 08, 1900 | H. Mueller | Tapping-machine | tapping machines |
