US PATENT SUBCLASS 250 / 376
.~.~ With electroscopic indicators

Current as of: June, 1999
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250 /   HD   RADIANT ENERGY

336.1  DF  INVISIBLE RADIANT ENERGY RESPONSIVE ELECTRIC SIGNALLING {16}
374  DF  .~ Including a radiant energy responsive gas discharge device {8}
376.~.~ With electroscopic indicators {2}
377  DF  .~.~.~> With charge generator
378  DF  .~.~.~> With charge storage means

DEFINITION

Classification: 250/376

(under subclass 374) Subject including two electrostatically charged relatively movable members, at least one of which is electrically connected to at least one of the electrodes, the discharge of which cause one of the members to be deflected with respect to the other, thus producing a visible indication of ionizing radiant energy.

SEE OR SEARCH CLASS

324, Electricity: Measuring and Testing,

109, for electroscopes, per se.