| Patents for Charles W. Manzel |
Patents 1 -
15
of 22
      |
| Number | Date | Patentee | Title | Type |
| 791,636 | Jun. 06, 1905 | C.W. Manzel | Oil Pump | oil pumps |
| 820,979 | May 22, 1906 | C.W. Manzel | Force Feed Lubricator | tool lubricators |
| 828,326 | Aug. 14, 1906 | C.W. Manzel | Oil Pump | oil pumps |
| 829,166 | Aug. 21, 1906 | C.W. Manzel | Lubricator | tool lubricators |
| 832,265 | Oct. 02, 1906 | C.W. Manzel | Lubricating Device | tool lubricators |
| 920,769 | May 04, 1909 | C.W. Manzel | Lubricator | tool lubricators |
| 931,327 | Aug. 17, 1909 | C.W. Manzel | Drill Chuck | drill press chucks |
| 1,003,189 | Sep. 12, 1911 | C.W. Manzel | Lubricator | tool lubricators |
| 1,069,450 | Aug. 05, 1913 | C.W. Manzel | Force Feed Lubricator | tool lubricators |
| D45,943 | Jun. 16, 1914 | C.W. Manzel | Tire Pump | air pumps |
| 1,201,324 | Oct. 17, 1916 | C.W. Manzel | Leaf Spring Lubricating Tool | lubricating accessories |
| 1,213,522 | Jan. 23, 1917 | C.W. Manzel | Air Pump | air pumps |
| D51,729 | Feb. 05, 1918 | C.W. Manzel | Leaf Spring Lubricating Tool | leaf spring spreaders and lubricators |
| D57,987 | May 24, 1921 | C.W. Manzel | Grease Gun | grease guns |
| 1,459,662 | Jun. 19, 1923 | C.W. Manzel | Lubricating System | |
