US PATENT SUBCLASS 204 / 196.37
.~.~.~ Vessel protected (e.g., steam boiler, etc.)

Current as of: June, 1999
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204 /   HD   CHEMISTRY: ELECTRICAL AND WAVE ENERGY

193  DF  APPARATUS {5}
194  DF  .~ Electrolytic {11}
196.01  DF  .~.~ Object protection {15}
196.37.~.~.~ Vessel protected (e.g., steam boiler, etc.)

DEFINITION

Classification: 204/196.37

Vessel protected (e.g., steam boiler, etc.):

(under subclass 196.01) Apparatus having means to protect a container (as the object) for solid or fluid material (e.g., steam boiler, etc.).