| Patents for Charles W. Manzel |
Patents 1 -
10
of 22
      |
| Picture | Number | Date | Patentee | Title |
 | 791,636 | Jun. 06, 1905 | C.W. Manzel | Oil Pump |
| | 820,979 | May 22, 1906 | C.W. Manzel | Force Feed Lubricator |
 | 828,326 | Aug. 14, 1906 | C.W. Manzel | Oil Pump |
 | 829,166 | Aug. 21, 1906 | C.W. Manzel | Lubricator |
 | 832,265 | Oct. 02, 1906 | C.W. Manzel | Lubricating Device |
| | 920,769 | May 04, 1909 | C.W. Manzel | Lubricator |
 | 931,327 | Aug. 17, 1909 | C.W. Manzel | Drill Chuck |
| | 1,003,189 | Sep. 12, 1911 | C.W. Manzel | Lubricator |
 | 1,069,450 | Aug. 05, 1913 | C.W. Manzel | Force Feed Lubricator |
 | D45,943 | Jun. 16, 1914 | C.W. Manzel | Tire Pump |
