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| Patents for Louis W. Witry | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 687,808 | Dec. 03, 1901 | L.W. Witry | Friction-clutch | |
 | 710,647 | Oct. 07, 1902 | L.W. Witry | Speed-regulator for explosive-engines | |
 | 862,599 | Aug. 06, 1907 | L.W. Witry | Speed-regulating device for explosive-engines | |
 | 935,718 | Oct. 05, 1909 | L.W. Witry | Combined charging and feeding device for gasoline-engines | |
 | 1,183,153 | May 16, 1916 | L.W. Witry | Positively-actuated lubricating device | |
 | 1,233,739 | Jul. 17, 1917 | L.W. Witry | Internal-combustion engine | |