US PATENT SUBCLASS 62 / 75
.~.~ Sequential stages, e.g., composite block making

Current as of: June, 1999
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62 /   HD   REFRIGERATION

56  DF  PROCESSES {28}
66  DF  .~ Congealing flowable material, e.g., ice making {5}
75.~.~ Sequential stages, e.g., composite block making

DEFINITION

Classification: 62/75

(under subclass 66) Processes wherein a step of freezing or cooling is followed by another step of freezing, or a prefrozen material is added to another material which is then frozen into a composite solid.

SEE OR SEARCH THIS CLASS, SUBCLASS:

65, for processes of treating an article involving use of diverse sequential temperatures.