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| All Patents in class 137/614.11 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 505,828 | Oct. 03, 1893 | F. Herman | Lubricator | ||
 | 757,794 | Apr. 19, 1904 | E. Walker | Bottle-tap | |
| 2,642,086 | Jun. 16, 1953 | H.W. Herring, R.M. Conklin | Loading valve and method of controlling fluid flow | ||