| Patents for Detroit Lubricator Co. |
Patents 31 -
45
of 330
      |
| Number | Date | Patentee | Title | Type |
| 1,629,449 | May 17, 1927 | G.B. Duffield | Valve Operating Device | valves |
| 1,630,493 | May 31, 1927 | J.G. Lanning | Carburetor | carburetors |
| 1,659,356 | Feb. 14, 1928 | A.D. Forster | Means for Lubricating the Pistons and Valves of Engines | steam engine lubricators |
| 1,661,131 | Feb. 28, 1928 | G.B. Duffield | Expansible Collapsible Element | steam engine packing |
| 1,676,473 | Jul. 10, 1928 | F.C. Blanchard | Lubricator | tool lubricators |
| 1,718,769 | Jun. 25, 1929 | W.H. Weber | Carburetor | carburetors |
| 1,719,801 | Jul. 02, 1929 | G.B. Duffield | Valve | valves |
| 1,786,402 | Dec. 23, 1930 | P.S. Russel | Regulator | pressure regulators |
| 1,815,019 | Jul. 14, 1931 | W.H. Weber | Carburetor | carburetors |
| 1,824,852 | Sep. 29, 1931 | W.H. Weber | Carburetor | carburetors |
| 1,843,068 | Jan. 26, 1932 | R. Gradhe, A. Von Wangenheim | Valve | industrial valves |
| 1,846,008 | Feb. 16, 1932 | W.H. Weber | Carbureting Apparatus | carburetors |
| 1,847,452 | Mar. 01, 1932 | H.P. Vaughan | Air Cleaner | air supply apparatus |
| 1,848,036 | Mar. 01, 1932 | W.H. Weber | Carburetor | carburetors |
| 1,862,978 | Jun. 14, 1932 | H.B. Norris | Carburetor | carburetors |
