US PATENT SUBCLASS 436 / 26
.~ For metallic ores

Current as of: June, 1999
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436 /   HD   CHEMISTRY: ANALYTICAL AND IMMUNOLOGICAL TESTING

25  DF  GEOCHEMICAL, GEOLOGICAL, OR GEOTHERMAL EXPLORATION {4}
26.~ For metallic ores

DEFINITION

Classification: 436/26

For metallic ores:

(under subclass 25) Processes or compositions for determining some chemical property of metal containing ore.

SEE OR SEARCH THIS CLASS, SUBCLASS:

29, for chemical testing of or for mineral oils or carbonaceous minerals.

139, for tests preformed on hydrocarbons especially subclass 141 for octane tests.