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 |
| 4386927 | Device to be utilized in extracapsular cataract surgery Disposable irrigation and aspiration apparatus is disclosed for use during extracapsular extraction of a cataract from a person's eye. A separate handpiece is provided to allow the surgeon to apply only irrigation flow to the eye during the operation. The... | 06/07/1983 |
| 4377897 | Ophthalmic needle and method for manufacturing the same An improved ophthalmic needle and method for manufacturing the same for use with an ophthalmic instrument for extracapsular removal of a cataract. The needle comprises a coaxial tube portion, a separated tube portion, and a tank portion, interposed thereb... | 03/29/1983 |
