US PATENT SUBCLASS 208 / 370
MISCELLANEOUS
Current as of:
June, 1999
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208 /
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MINERAL OILS: PROCESSES AND PRODUCTS
370
MISCELLANEOUS
DEFINITION
Classification: 208/370
(under the class definition) Processes not provided for in any other subclass.
(1) Note. Included herein are miscellaneous treatments of mineral oils during transportation not provided for in any other class.
SEE OR SEARCH CLASS
137, Fluid Handling, particularly
13, for processes of improving the flow characteristics of fluids by addition of material or energy.
507, Earth Boring, Well Treating, and Oil Field Chemistry,
90, for compositions and processes for preventing contaminant deposits in petroleum oil conduits.