US PATENT SUBCLASS 324 / 93
.~.~ Conductive field (e.g., mercury)

Current as of: June, 1999
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324 /   HD   ELECTRICITY: MEASURING AND TESTING

76.11  DF  MEASURING, TESTING, OR SENSING ELECTRICITY, PER SE {46}
92  DF  .~ Fluid (e.g., thermal expansion) {1}
93.~.~ Conductive field (e.g., mercury) {1}
94  DF  .~.~.~> Electrolytic

DEFINITION

Classification: 324/93

(under subclass 92) Subject matter in which the fluid is electrically conductive and having means to cause electricity to flow through the fluid.

(1) Note. The fluid is usually mercury, but may be any other conductive fluid, such as a molten alloy. Herein are found, inter alia, mercury type ampere hour meters.