A helium-filled sun shade for protecting individuals engaged in outdoor activities.
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| Number | Title | Issue Date |
| 5767333 | Process for preparing 2,2'-dimethyl-1,1'binaphthyl and 2,7'-dimethyl-1,1'-binaphthyl 2,7'-Dimethyl-1,1'-binaphthyl and a process for preparing 2,2'-dimethyl-1,1'-binaphthyl and 2,7'-dimethyl-1,1'-binaphthyl by electrochemically oxidatively dimerizing 2-methylnaphthalene in the presence of acetonitrile/water/electrolyte salt mixtures which... | 06/16/1998 |
| 5271811 | Process for purifying 2-(4-isobutylphenyl)-propionic acid by vacuum distillation 2-(4-Isobutylphenyl)-propionic acid is purified by subjecting it to a vacuum rectification, in which the temperature is below the decomposition temperature of the acid.... | 12/21/1993 |