US PATENT SUBCLASS 73 / 23.39
.~.~ Column detail
Current as of:
June, 1999
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73 /
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MEASURING AND TESTING
23.2
DF
GAS ANALYSIS
{15}
23.35
DF
.~ Gas chromatography {7}
23.39
.~.~ Column detail
DEFINITION
Classification: 73/23.39
Column detail:
(under subclass 23.35) Subject matter comprising detail of a tubular structure which is either packed with a material having a known absorption characteristic and/or is coated with a liquid of a high molecular weight and having known
properties.