US PATENT SUBCLASS 518 / 728
MISCELLANEOUS

Current as of: June, 1999
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518 /   HD   CHEMISTRY: FISCHER-TROPSCH PROCESSES; OR PURIFICATION OR RECOVERY OF PRODUCTS THEREOF

728MISCELLANEOUS

DEFINITION

Classification: 518/728

MISCELLANEOUS:

(under the class definition) Processes not provided for in any other subclass to purify or recover.