86851039
Dec 16, 2015
Operator station emergency visual apparatus, namely, an inflatable or expandable hand held, see-through enclosure, namely, an air-tight, enclosed apparatus that inflates or expands, featuring an air filter, to keep smoke or other visually impairing air out, for providing an operator with substantially uninterrupted access to operationally necessary visual information under reduced visibility or emergency conditions
Electrical and Scientific Apparatus