(under subclass 330) Smoking devices commonly known as smoking tubes. These usually comprise a mouthpiece and a tubular compartment in substantial alinement therewith to receive loose tobacco.
(1) Note. Compare with subclass 187 and indented subclasses of this class.
(2) Note. Compare the base burner type in subclass 193 of this class.
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174, such devices having means for guarding against the action of wind or receiving the ash.
