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investigating or analysing materials by determining theirchemical or physical properties (10) 10
measuring (10) 10
physics (10) 10
testing (10) 10
general tagging of cross-sectional technologies spanning over several sections of the ipc (8) 8
general tagging of new technological developments (8) 8
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technical subjects covered by former uspc cross-reference art collections [xracs] and digests (8) 8
technical subjects covered by former uspc cross-reference artcollections [xracs] and digests (8) 8
chemical or physical laboratory apparatus for general use (7) 7
mixing, e.g. dissolving, emulsifying, dispersing (7) 7
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03/1980
A device is provided for measuring the concentration of oxygen in a sample utilizing the differential absorption by oxygen (O2) of two closely spaced... 
TESTING | INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES | MEASURING | PHYSICS
Patent
01/1998, 6
Patent
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