US PATENT SUBCLASS 399 / 93
.~.~ Having filtering (e.g., ozone removal)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


399 /   HD   ELECTROPHOTOGRAPHY

91  DF  INTERNAL MACHINE ENVIRONMENT {4}
92  DF  .~ Forced air circulation {1}
93.~.~ Having filtering (e.g., ozone removal)

DEFINITION

Classification: 399/93

Having filtering (e.g., ozone removal):

(under subclass 92) Subject matter wherein a means or method is provided for screening out particles or gas within the atmosphere of the electrophotos:graphic device.

OTHER CLASSIFICATION SYSTEMS:

ipc{2}G03G21/20, for humidity or temperature control.

jpofiG03G21/00 534, for humidity or temperature control (e.g., by using a heater or a fan).