US PATENT SUBCLASS 34 / 277
.~.~ Having shutter means

Current as of: June, 1999
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34 /   HD   DRYING AND GAS OR VAPOR CONTACT WITH SOLIDS

245  DF  MATERIAL TREATED BY ELECTROMAGNETIC ENERGY {8}
275  DF  .~ Ultraviolet energy {3}
277.~.~ Having shutter means

DEFINITION

Classification: 34/277

Having shutter means:

(under subclass 275) Subject matter wherein a movable cover is positioned between the material and ultraviolet radiation source.