US PATENT SUBCLASS 122 / 450
.~ Suspended boiler

Current as of: June, 1999
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122 /   HD   LIQUID HEATERS AND VAPORIZERS

*  DD  REGULATION {2}
450.~ Suspended boiler

DEFINITION

Classification: 122/450

(under the class definition) Subject matter comprising boilers that are movably supported to control either the combustion of the fuel or water feed or both.