US PATENT SUBCLASS 122 / 504.3
.~.~ Fusible control

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

504  DF  SAFETY DEVICES {4}
504.3  DF  .~ Fire extinguishers {3}
504.3.~.~ Fusible control

DEFINITION

Classification: 122/504.3

(under subclass 504) Subject matter relating to devices controlled by fusible means for admitting steam or water to the firebox or otherwise extinguishing or dampening fire.

SEE OR SEARCH CLASS

220, Receptacles,

89.1, 89.4 for frangible or fusible receptacle attachments.