Financial research in the field of financial instruments; Computer analyses of stock exchange information; Financial investment analysis and stock research; Providing stock market information; Providing an on-line computer database in the field of stock/securities market information; Providing an on-line searchable database featuring financial information about scanning data in financial markets and crypto exchanges in order to calculate the rate of change of time series regarding assets, cal...

operator station emergency visual assurance apparatus, namely, an inflatable or expandable hand held see-through enclosure for providing an operator with substantially uninterrupted access to operationally necessary visual information under reduced visibility

personal optical viewing device for use in enhancing sight in smoke-filled and other low-visibility environments

OPTICAL INSTRUMENTS ADAPTED FOR COMPARATIVELY ESTIMATING THE DENSITY OF SMOKE