US PATENT SUBCLASS 217 / 4
TANKS
Current as of: June, 1999
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DEFINITION
Classification: 217/4
(under the class definition) Subject matter relating to the structure of a simple wooden tank independent of the various attachments, filling or emptying means, valves, etc.
SEE OR SEARCH CLASS
137, Fluid Handling, appropriate subclass for fluid handling apparatus including tanks in combination with other fluid handling devices.
220, Receptacles, appropriate subclasses for tanks generally,
200+, for tank closures and subclasses 694+ for miscellaneous tank attachments.
