A helium-filled sun shade for protecting individuals engaged in outdoor activities.
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| Number | Title | Issue Date |
| 5007582 | Reduced pressure steam heat treating device A device for heating with reduced pressure steam directly or indirectly a material or product to be heat-treated, which includes a heat exchanger chamber which is supplied with steam through a pressure reducing valve and evacuated by an ejector device whi... | 04/16/1991 |