US PATENT SUBCLASS 432 / 30
.~.~ Utilizing a heat storage mass


Current as of: June, 1999
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432 /   HD   HEATING

1  DF  PROCESSES OF HEATING OR HEATER OPERATION {14}
29  DF  .~ Of heating a fluid {1}
30.~.~ Utilizing a heat storage mass


DEFINITION

Classification: 432/30

(under subclass 29) Process in which a body of material is caused to receive and temporarily retain sensible or latent heat.