US PATENT SUBCLASS 48 / 64
.~.~.~ Superheated

Current as of: June, 1999
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48 /   HD   GAS: HEATING AND ILLUMINATING

61  DF  GENERATORS {4}
62 R  DF  .~ Cupola {18}
63  DF  .~.~ Air and steam injected {1}
64.~.~.~ Superheated

DEFINITION

Classification: 48/64

Means for superheating the air or steam, or both, before entering the cupola.