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| Patents for Adolph W. F. Manzel | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,323,603 | Dec. 02, 1919 | A.W. Manzel | Force Feed Lubricator | |
 | 1,625,618 | Apr. 19, 1927 | A.W. Manzel | Oil Pump | |
 | 1,735,769 | Nov. 12, 1929 | A.W. Manzel | Stabilizer | |