US PATENT SUBCLASS 73 / 434
.~.~ Continuous test fluid supply

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

32 R  DF  SPECIFIC GRAVITY OR DENSITY OF LIQUID OR SOLID {7}
433  DF  .~ With weighing feature {3}
434.~.~ Continuous test fluid supply

DEFINITION

Classification: 73/434

(under subclass 433) Devices with means to continuously supply or circulate fluid under test.