US PATENT SUBCLASS 62 / 49.2
.~.~ Of liquid level

Current as of: June, 1999
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62 /   HD   REFRIGERATION

45.1  DF  STORAGE OF SOLIDIFIED OR LIQUIFIED GAS (E.G., CRYOGEN) {12}
49.1  DF  .~ With measuring {1}
49.2.~.~ Of liquid level

DEFINITION

Classification: 62/49.2

Of liquid level:

(under subclass 49.1) Process or apparatus wherein the height of the stored product within the receptacle is measured.