| All Patents in class 184/7.4 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 1,459,662 | Jun. 19, 1923 | C.W. Manzel | Lubricating System | |
| 1,761,891 | Jun. 03, 1930 | C.W. Manzel | Lubricating System | |
| 1,841,526 | Jan. 19, 1932 | R.E. Flanders | Metering Device | hydraulic apparatus |
| 1,938,758 | Dec. 12, 1933 | H. Ernst | Spindle Oscillator | grinding machines |
| 2,007,797 | Jul. 09, 1935 | B.E. Folke | Lubricating System | tool lubricators |
| 2,012,724 | Aug. 27, 1935 | C.W. Manzel | Centralized Lubricating System | tool lubricators |
| 2,155,368 | Apr. 18, 1939 | W.S. Landon, A. Von Wangenheim | Liquid Dividing Feed Mechanism | industrial machine lubrication |
| 2,536,791 | Jan. 02, 1951 | H.R. Welby | Liquid Feed Dividing Means | liquid manifolds |
| 2,620,896 | Dec. 09, 1952 | E.W. Davis | Centralized Oiling System | industrial machine lubrication |
