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A haircutting appliance comprises an enclosed housing having a hollow handle connecting the housing to a vacuum source to carry away cut hairs from a subject's head.
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| Number | Title | Issue Date |
| 6955695 | Conversion of petroleum residua to methane This invention discloses improvements on previous inventions for catalytic conversion of coal and steam to methane. The disclosed improvements permit conversion of petroleum residua or heavy crude petroleum to methane and carbon dioxide such that nearly all of the h... | 10/18/2005 |
| 5785868 | Method for selective separation of products at hydrothermal conditions Sodium and borate ions are separated in supercritical water by addition of dissolved CO2 to cause precipitation of carbonates and the formation of boric acid. Carbonates and boric acid are then recovered as separate products.... | 07/28/1998 |
