US PATENT SUBCLASS 73 / 335.09
.~.~.~.~.~ Relative air motion creating means (e.g., sling psychrometer)

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

23.2  DF  GAS ANALYSIS {15}
29.01  DF  .~ Moisture content or vapor pressure {4}
29.02  DF  .~.~ Hygrometer {4}
335.06  DF  .~.~.~ Wet and dry responsive elements {2}
335.08  DF  .~.~.~.~ Wet bulb detail {1}
335.09.~.~.~.~.~ Relative air motion creating means (e.g., sling psychrometer)

DEFINITION

Classification: 73/335.09

Relative air motion creating means (e.g., sling psychrometer):

(under subclass 335.08) Subject matter including means which causes air or another type gas to pass over the wet responsive member.

SEE OR SEARCH CLASS

454, Ventilation, appropriate subclass for ventilation means, per se.