Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 3958513 | Automatic fluid motor railway car recharging A railway vehicle having pneumatic actuated devices connected to a pneumatic system including a refillable supply tank connected to the control and actuation elements of the pneumatic devices is provided with a device for coupling the supply tank to a sou... | 05/25/1976 |
