US PATENT SUBCLASS 362 / 281
.~.~.~ Plural, relatively movable

Current as of: June, 1999
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362 /   HD   ILLUMINATION

257  DF  LIGHT SOURCE (OR SUPPORT THEREFOR) AND MODIFIER {18}
277  DF  .~ Adjustable or repositionable modifier {4}
280  DF  .~.~ In plane, or extension of modifying surface {1}
281.~.~.~ Plural, relatively movable

DEFINITION

Classification: 362/281

(under subclass 280) Subject matter having two or more adjustable or repositionable modifiers each with a modifying surface movable in its own plane or extension, the modifiers being movable relative to each other.

(1) Note. Classifiable in this subclass is, for example, the combination of a light source and an iris type shutter.