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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 |
| 4299812 | Immunoassay of thyroxine in neonates using dried blood samples In the immunoassay of thyroxine using dried blood samples spotted on filter paper, the assay in this invention is run at a pH of 9.2 to 10.0, preferably at about 9.5, rather than the pH range of about 8.4 to 8.7 generally used in the art. The advantage of... | 11/10/1981 |
| 4296747 | Cath-a-jet A device for introducing fluid into urethral catheters having a free end fitment and/or a pierceable injection site comprising a syringe structure actuable to expel fluid from an outlet at one end thereof, and a connector structure extending from the one ... | 10/27/1981 |
| 4293778 | Anti-theft screen construction A partially conductive security screen arrangement for use with an intrusion alarm system designed to operate in a normally closed sensing circuit condition and to produce a warning signal when the sensing circuit is broken, which arrangement includes con... | 10/06/1981 |
| 4286389 | Apparatus and method for lyophilizing aseptic substances Apparatus for use in lyophilizing a substance in a container and sealing the substance within the container after lyophilization. The apparatus includes an upper portion positionable about a resilient stopper in frictional engagement therewith, and a stru... | 09/01/1981 |
| 4259956 | Certi-seal This patent describes a novel medicament package particularly adapted for the containment of liquid medication comprising a shell vial having cylindrical walls and an open end and a closed end, within said vial an inwardly extending annular shoulder integ... | 04/07/1981 |
| 4253501 | Transfer system A transfer device for withdrawal of aliquots from a container of bulk solution is provided with a body having a tapered chamber, a first passage venting the smaller end of the chamber to the surrounding air, a second passage communicating at one end with ... | 03/03/1981 |
| 4252769 | Apparatus for the performance of chemical processes An improved apparatus for the performance of chemical processes having a reaction chamber with an open end, a reaction cell mounted within the chamber and having a substantially cylindrical interior wall in which is formed an annular groove, and means for... | 02/24/1981 |
