| Patents for J. E. Lonergan Co. |
Patents 1 -
10
of 33
      |
| Picture | Number | Date | Patentee | Title |
 | 132,477 | Oct. 22, 1872 | J.E. Lonergan | Improvement in lubricators |
 | RE9,164 | Apr. 20, 1880 | J.E. Lonergan | Lubricator |
 | 256,229 | Apr. 11, 1882 | J.E. Lonergan | Oil-cup for steam-engines |
 | 453,012 | May 26, 1891 | J.F. Lonergan | Cock or faucet |
 | 453,013 | May 26, 1891 | J.F. Lonergan | Lubricator |
 | 455,001 | Jun. 30, 1891 | J.E. Lonergan | Testing-yoke for safety-valves |
 | 532,469 | Jan. 15, 1895 | J.E. Lonergan | Lubricator |
 | 944,330 | Dec. 28, 1909 | M.A. Hudson | Steam safety-valve |
 | 1,641,838 | Sep. 06, 1927 | H.J. Burkhardt | Pressure gauge |
 | 2,414,794 | Jan. 28, 1947 | T.W. Bergquist | Safety valve |
